The true value of a forest cannot be measured in board feet alone.
FRUGALITY. Make no expense but to do good to others or yourself; i.e., waste nothing.
改变令人不适，但它是进步的必要条件。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
自然是最好的向导，追随她的人，虽然有时可能会迷路，但总体上会走在正确的道路上。
I wanted to sell a million records, and I sold a million records. I wanted to go platinum; I went platinum. I've been working nonstop since I was 15. I don't even know how to chill out.
每个人都是艺术家。
You can’t go back and change the beginning, but you can start where you are and change the ending.
在一个国家中，一个公民的自由是对其他人的威胁。