The essence of mathematics lies in its power to reveal patterns and symmetries.
节俭就会昌盛,放纵享乐就会灭亡。
The greatest glory in living lies not in never falling, but in rising every time we fall.
Words are, of course, the most powerful drug used by mankind.
A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.