与怪物搏斗的人应小心，免得自己也变成怪物。
运气是准备遇到机会的结果。
我不是为了被喜欢而来，我是为了做自己而来。
All oppression creates a state of war.
The language of mathematics is universal, transcending cultural and linguistic barriers.
In times of change, the learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists.