负责任的林业不是限制进步，而是重新定义进步的含义。

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

数学不是一项观赏性运动。

I believe in being strong when everything seems to be going wrong. I believe that happy girls are the prettiest girls. I believe that tomorrow is another day and I believe in miracles.

写作是一种保存短暂事物的方式。