There is only one thing that makes a dream impossible to achieve: the fear of failure.

In the world of physics, we often find that the simplest questions are the hardest to answer.

The uniform， constant， and uninterrupted effort of every man to better his condition， the principle from which public and national as well as private opulence is originally derived.

有时候你必须迷失自己，才能找到真正的自己。

动物福利不仅仅是伦理问题——它是好的科学和好的商业。