The key to progress in science is persistence and an open mind.

A business has to be involving, it has to be fun, and it has to exercise your creative instincts.

I never want to look back and say I could have done more.

In language， there is no one-to-one correspondence between words and the things they refer to.

如果你想过得快乐，就把生活跟目标联系在一起，而不是跟人或物质。