We need to think creatively about how to solve the world's biggest problems.
Every man is a moon and has a dark side which he never shows to anybody.
数百万人看到苹果落下,但牛顿问了为什么。
let everyone else call your idea crazy, just keep going, don't stop, don't even think about stopping until you get there, and don't give much think of where "there" is.