The world is in a constant state of flux. Nothing remains the same from one moment to the next. You can never step into the same river twice.

高分子化学的引入开辟了一个新的材料世界，其性质和应用仍远未被充分探索。

To feel much for others and little for ourselves； to restrain our selfishness and exercise our benevolent affections， constitute the perfection of human nature.

The act of creation is an act of revelation.

真相是一把刀，它两面都割。