做数学的艺术在于找到那个包含所有普遍性萌芽的特殊案例。
The art of doing mathematics consists in finding that special case which contains all the germs of generality.
真正的监狱不是由铁条制成的,而是由恐惧制成的。
I don’t think you should ever feel like you’ve achieved everything. You always have to keep pushing.