唯一能让你快乐的是你自己的微笑。
幸福晚年的秘诀在于要有好的记性和坏的记性。
你的时间有限，所以不要浪费它去过别人的生活。
I don't feel like I have to please anyone. I feel free. I feel like I'm an adult. I'm grown. I can do what I want. I can say what I want. I can retire if I want. That's why I've worked hard.
The old-fashioned dictator does not exist under scientific management.
The theory of probabilities is at bottom nothing but common sense reduced to calculus.