"The past is always tense, the future perfect."

The beauty of mathematics is that it allows us to abstract away the complexities of the real world and focus on the underlying principles.

The only way to do great work is to love what you do.

没有森林，文明将会消亡。

办事果断的人看起来好像忙碌，其实心中常有闲暇。因循苟且的人看起来闲暇，其实心中常有牵念。

That which does not kill us makes us stronger.