可持续性不仅仅是植树造林；而是确保我们今天采取的每一个行动都不会损害未来。

Happiness is not something ready-made. It comes from your own actions.

"In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs."

无限小在自然中的作用是无限大的。