Happiness is not something you postpone for the future; it is something you design for the present.
聪明的人戒太明察,刚强的人戒太暴躁,温和的人戒优柔寡断。
The paper industry has a unique opportunity to lead the way in environmental stewardship.
The only way to learn mathematics is to do mathematics.
Every scientific advancement forces us to confront new ethical questions.