The best fertilizer is the farmer's shadow.

"The only thing that is truly eternal is the human spirit."

The relation between what we see and what we know is never settled.

预测未来的最好方法是通过创新和适应来创造未来。

The tragedy of great power politics is that even well-intentioned states are forced to act in ways that can lead to conflict and war.

你的雪无法融化是因为我。

"If people were rain, I was drizzle and she was a hurricane."

科学的进步不是通过事实的积累，而是通过发现它们之间的新关系。