1985年2月的一次演讲时所说
Surround yourself with people who challenge you, not just those who agree with you.
I believe that every human has a finite number of heartbeats. I don't intend to waste any of mine running around doing exercises.
The only way to make sense out of change is to plunge into it, move with it, and join the dance.
No one can rob us of our quest for truth.