“One small changed family doesn't calculate into a world that has been spinning for a billion years. But one small change makes the world spin differently in a billion ways for one family.”

“Wealth—one billion, two billion, what’s the difference? The difference is one billion—the same difference as flat broke, like me, and one billion.”

“One small decision can change the world.”

“People who really want to make a difference in the world usually do it, in one way or another. And I’ve noticed something about people who make a difference in the world: They hold the unshakable conviction that individuals are extremely important, that every life matters. They get excited over one smile. They are willing to feed one stomach, educate one mind, and treat one wound. They aren’t determined to revolutionize the world all at once; they’re satisfied with small changes. Over time, though, the small changes add up. Sometimes they even transform cities and nations, and yes, the world.”

“I have never been especially impressed by the heroics of people convinced they are about to change the world. I am more awed by those who struggle to make one small difference.”

“Already he [humanity] is physically antique in this robot world he has created. All that sustains him is that small globe of grey matter through which spin his ever-changing conceptions of the universe.”