"The greatest glory in living lies not in never falling, but in rising every time we fall."
生命中最伟大的光辉不在于永不坠落，而在于坠落后总能再度升起。
A mathematician's intuition is as important as rigorous proof.
跨越万里山川，拨开云雾前进；经历百次寒暑，踏着霜雨前行。
任何一种成瘾都是恶习，无论是对酒精、吗啡或理想的成瘾。