人的欲望和其他激情，本质上是受到他自己控制的；他真正的困难在于，要知道何时需要加以控制，何时不需要。
The desires， and other passions of man， in themselves， are in his own power； his real difficulties are， to know when they are to be controlled， and when not.
生命是一段旅程，享受过程。
I was asked to act when I couldn't act. I was asked to sing 'Funny Face' when I couldn't sing, and dance with Fred Astaire when I couldn't dance. Do what you can't do!
译文：只有贤明，品德高尚的人，才能令人信服。
定义就是限制。
Failure gave me an inner security that I had never attained by passing examinations. Failure taught me things about myself that I could have learned no other way. I discovered that I had a strong will, and more discipline than I had suspected; I also found out that I had friends whose value was truly above the price of rubies.
The best way to predict the future is to create it.
唯一真正的力量是爱的力量。
数学的真正力量在于它简化复杂事物的能力，使不可理解的事物变得可理解。