The beauty of life is, while we cannot undo what is done, we can see it, understand it, learn from it and change. So that every new moment is spent not in regret, guilt, fear or anger, but in wisdom, understanding and love.

科学家是务实的人，他们的目标是实际的。他们不追求终极，而是追求接近。

Waste is a design flaw, and it's our job to fix it.

找到自己的最好方式是在为他人服务中迷失自己。