Choose rather to be strong of soul than strong of body.
"Every saint has a past, and every sinner has a future."
成功不仅仅是利润，而是建立可持续的东西。
Every problem in mathematics is an opportunity to learn something new.
意志不坚强的人，智慧也不会高到哪里去；说话不算数的人，做事也不会果敢痛快。
The soul is placed in the body like a rough diamond, and must be polished, or the luster of it will never appear.