真相并不總是美麗的,美麗的話語也不總是真相。
Fear not for the future, weep not for the past.
"Education is the most powerful weapon which you can use to change the world."
人心如海:有風(fēng)暴,有潮汐,有深淵;其中也有珍珠。
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.