写作是一种乐观的行为。

Singing is my way of expressing gratitude for the gift of music.

哲学是对智慧的永恒追求。

The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.

"The best way to predict the future is to create it."

The language of cells is written in molecules and forces.

自然实验可以为经济问题提供有价值的见解。