Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
The lightning that precedes the thunder is a common image of the warnings that come before calamity.
兼听则明,兼信则暗。不迷信权威,勇于独立思考,才能更明白的看待这个世界。
I am heartily rejoiced that my term is so near its close.