In the 1990s, Toby Corey co-founded the world’s largest web development company. Since then, he’s started other companies; held senior management positions at SolarCity, Tesla and most recently PlanGrid; and lectured in Stanford’s Department of Management Science & Engineering. Now, he finds himself as concerned by social and environmental problems as with building companies. In response to global crises of climate change and inequality, he advises an approach that he calls “zentrepreneurship,” and articulates principles aimed at helping entrepreneurs integrate creativity and ambition with social and environmental consciousness.