Bill Gates on Philanthropy

The Giving Pledge, formally announced in June 2010 by Bill Gates, Melinda French Gates, and Warren Buffett, asks the wealthy to commit the majority of their net worth, more than half, to philanthropy in their lifetimes or wills. It is a public gesture of intention rather than a legal contract, and each signer writes a letter explaining the decision; the pledge is even open to non-billionaires who plan to give away at least $500 million. The early traction was extraordinary: the first forty pledgers represented $125 billion of aggregate wealth by August 2010, and the campaign has since grown past 250 signatories from 30 countries whose combined wealth runs to roughly $600 billion. Momentum has slowed, with 113 signing in the first five years, 72 in the next five, and 43 in the five after that, and the list has occasionally purged members, removing Sam Bankman-Fried in 2022 and T. Denny Sanford in 2023.

Gates studied the philanthropy of Andrew Carnegie and John D. Rockefeller before building his own, donating Microsoft stock in 1994 to create the William H. Gates Foundation; in 2000 he and his wife combined three family foundations and donated stock valued at five billion dollars to create the Bill & Melinda Gates Foundation. By 2013 it was identified as the world's largest charitable foundation, with assets reportedly above $34.6 billion, and its structure drew on the Rockefeller model of tackling global problems governments ignore. Its program divisions span global development, global health, United States programs, and global policy and advocacy, funding fights against AIDS, tuberculosis, and malaria, vaccine campaigns to eradicate polio, sanitation and agriculture programs including Golden Rice, and family-planning access. David Rockefeller's personal generosity was a credited influence, and unlike some peers the foundation lets benefactors see how its money is spent.

Diagnosed with Stage 1-A Hodgkin lymphoma in 1982, Allen quit day-to-day work at Microsoft in early 1983 while remaining on its board as vice chairman, resigning from the board entirely on November 9, 2000, after which he stayed only as a senior strategy advisor. He and his sister Jody founded Vulcan in 1986 to manage his business and philanthropic affairs, and he built a multi-billion portfolio that included owning the Seattle Seahawks and Portland Trail Blazers and co-owning the Seattle Sounders. He founded the Allen Institutes for Brain Science, Artificial Intelligence, and Cell Science, funded SpaceShipOne's 2004 first crewed private spaceflight, gave more than two billion dollars to education, conservation, and the arts, and located famous warship wrecks. A 2009 non-Hodgkin lymphoma diagnosis preceded his death from septic shock on October 15, 2018, at sixty-five, with an estimated $20.3 billion net worth.

In June 2006, Warren Buffett pledged roughly ten million Berkshire Hathaway Class B shares, then valued at $3,071 each before a later fifty-to-one split, to be delivered over multiple years, with the first 500,000-share tranche worth about $1.5 billion. The gift came with three conditions: Bill or Melinda Gates must remain alive and active in the foundation's administration, the foundation must continue to qualify as a charity, and each year it must give away the previous year's Berkshire contribution plus an additional five percent of net assets, effectively converting the donation into a matching grant that doubled giving rather than swelling the endowment. The foundation received five percent of the earmarked shares in 2006 and declining installments each July thereafter, with Buffett adding another two billion dollars of stock in 2018. His cumulative giving to the foundation reached roughly $48 billion before the partnership ended in 2026.

The foundation's health bets were sized to move global systems. It underwrote Gavi, the vaccine alliance launched at the 2000 World Economic Forum, with a $750 million pledge covering its first five years and a further $750 million donation on January 25, 2005, supported the creation of the Global Fund to Fight AIDS, Tuberculosis and Malaria with a $100 million pledge in 2002 that grew to more than six billion dollars, and gave $86 million toward polio eradication in 2006, later becoming a core partner of the Global Polio Eradication Initiative. Programs it backed helped cut measles deaths in Africa by ninety percent since 2000, while Gavi and partners immunized more than 760 million children and prevented over thirteen million deaths. The foundation established the Gates Cambridge Scholarships in 2000, launched the Grand Challenges in Global Health research fund in 2003, and pledged $1.6 billion at the June 2020 Global Vaccine Summit, bringing its total Gavi commitments to six billion dollars, the foundation's largest single investment.

The foundation was designed to die. In October 2006 it was split into a trust that manages the endowment and an operating foundation that makes grants, with the announcement that all resources would be spent within fifty years of Bill's and Melinda's deaths, a deadline later tightened to twenty years in contrast to the perpetual life of most large foundations. In May 2025, Gates went further, announcing that the foundation would cease operations on December 31, 2045. The spend-down logic is administrative as much as philosophical: a fixed horizon lowers administrative costs over the institution's life and prevents the drift into token grantmaking that consumes perpetual endowments. Buffett's own stipulation that proceeds from shares he still owns at death be deployed within ten years of his estate's settlement reinforced the same conviction that philanthropic capital should be spent, not preserved.

Gates spent years warning that the world was unprepared for a pandemic, telling a TED conference audience in March 2015 that the next global outbreak would catch governments flat-footed, a warning that preceded the arrival of COVID-19 in late 2019. During the crisis, media outlets treated him as an authority despite his lack of public office or medical training, and his foundation created the COVID-19 Therapeutics Accelerator in 2020 to speed the development and evaluation of new and repurposed treatments. He described frequent conversations with Anthony Fauci on vaccines and medical innovation. In April 2021 he drew criticism for arguing that pharmaceutical companies should retain vaccine patents and for opposing the TRIPS waiver, contending that safety protocols and the difficulty of transferring production, not intellectual property, were the real constraints on supply; his foundation had encouraged Oxford University to partner with a major manufacturer rather than give away its vaccine, and Oxford chose AstraZeneca.

In 2025 Gates made two decisions that define his philanthropy's endgame: he will donate virtually all of his remaining wealth, about $200 billion, over the following two decades, and the foundation will close its doors at the end of 2045. In his own telling of the story, he understood from the beginning that the foundation would not be permanent, because philanthropy works best when it is time-limited and aimed squarely at the needs that matter most. The final chapter concentrates the institution on three goals: no mother, child, or baby dying of a preventable cause, a generation growing up without deadly infectious diseases, and hundreds of millions of people escaping poverty. Across its first twenty-five years the foundation invested more than $102.3 billion in global health and development, American education, and economic mobility, with teams and partners in over 140 countries, and child mortality has been cut in half since 2000.

In his 2021 pledge letter, Gates grounded his philanthropy in childhood ritual: his parents gave him a weekly allowance he could spend freely, but at the dinner table they asked how much of it he planned to give to the Salvation Army at Christmas. The message was that if you are in a position to help somebody, you should do it, and his parents taught generosity through how they used their time and resources. When the time came to decide what to do with his Microsoft wealth, he followed their example, resolving that the vast majority would go toward helping as many people as possible, mostly through the foundation. He measures the results in lives: more than eight hundred million children supported with vaccination, and American schools helped to keep more kids on track to graduation. His giving beyond the foundation has grown in climate mitigation and Alzheimer's research, and he invokes his father's maxim that there is no problem bigger than they are.

The foundation's origin story, as Gates tells it, begins with his parents and a newspaper article. The core belief that every life has equal value came from lessons his mother and father taught early, and as Microsoft wealth grew in the late 1990s, he and Melinda began looking for ways to give back, starting with expanding technology access in American public libraries. Then he read an article reporting that millions of children in poor countries were dying annually of diseases that rich nations had long since learned to prevent, and he sent it to his father with a note asking whether they could do something about it. That moment redirected his life. He began meeting scientists, health workers, and community leaders to learn where philanthropy could matter, and the foundation born in 2000 co-founded Gavi with a $750 million pledge and helped create the Global Fund, with Warren Buffett's extraordinary 2006 pledge of more than $30 billion enabling bigger, longer bets.

The original 2010 pledge letter that Gates signed with Melinda opened with rotavirus, a highly preventable disease killing half a million children every year while airplane crashes dominated front pages and most people could not name the killer. The couple committed the vast majority of their assets to the foundation to stop such deaths and dismantle barriers to health and education, animated by the principle that all lives have equal value. Vaccines, they wrote, are miracles, tiny vessels of hope, and the letter pressed for both wider delivery of existing vaccines and the development of new ones, alongside a parallel push in American education. The pledge itself grew out of gatherings with other givers, comparing what had worked in philanthropy and what had not, and the letter closes on inheritance values passed from their parents: work hard, show respect, keep a sense of humor, and use whatever talent or treasure life grants as wisely as possible.

The foundation's own timeline records an unbroken escalation. The William H. Gates Foundation formed in 1994 to fund scientific research, global health, and local causes; the Gates Library Foundation followed in 1997, helping United States public libraries offer free internet access before going global and reaching more than fifty countries and 280 million lives. In 1999 the epidemiologist William Foege joined as senior advisor to craft the global health strategy, and the Gates Millennium Scholars program began, ultimately benefiting more than twenty thousand low-income students of color. The merged Bill & Melinda Gates Foundation launched in 2000 alongside Gavi's creation at the World Economic Forum and the Sound Families homeless-housing effort in Puget Sound. In 2002 came a $100 million founding pledge to the Global Fund, in 2003 the Grand Challenges program and an India office whose HIV prevention work halved infection rates within a decade, and in 2006 the Alliance for a Green Revolution in Africa, which has since reached more than twenty million smallholder farmers.

The institution's later history pairs programmatic ambition with planned obsolescence. The Gates Notes-era initiatives piled up: the 2011 challenge to reinvent the toilet, the 2012 London family-planning summit that set a goal of reaching 120 million more women with contraceptives, the London Declaration on neglected tropical diseases the same year, India and Southeast Asia certified polio-free in 2014, and $1.75 billion committed to COVID-19 response in 2020, the year Africa was certified free of wild poliovirus. Governance followed: Bill Gates Sr., the foundation's north star and strategic guide, died in September 2020; Warren Buffett stepped down as trustee in 2021 after fifteen years, having contributed $43 billion to date; an independent governing board was appointed in 2022; Melinda French Gates left in 2024; and in May 2025 the $200 billion, 2045 sunset was announced. Gates insists the goal is not innovation itself but the impact it makes possible.