Only when one plunges into the powerful current of the times will one's life shine brilliantly.

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

老年人相信一切，中年人怀疑一切，年轻人知道一切。

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

The proletariat is the universal class, the class whose radical chains are capable of bursting asunder.