數(shù)學(xué)的快樂(lè)來(lái)自于為理解而奮斗。
Language is wine upon the lips.
The universe is under no obligation to make sense to you.
It is the duty of a student to get everything out of a teacher， and the duty of a teacher to get everything out of a student.
心理學(xué)理論的檢驗(yàn)標(biāo)準(zhǔn)是其對(duì)生活的適用性。
What is a hero without love for mankind?
Don't be afraid of making mistakes, be afraid of not learning.