小人专望受人恩，受过辄忘；君子不轻受人恩，受则必报。
小人专门期望他人的恩惠，但受恩后就忘；君子则不轻易受人恩惠，若受恩于人，则必定想法图报。
The key to successful investing is not predicting the future, but preparing for it.
The customer may not always be right, but they are always the customer.
革命道德不是从天上掉下来的。它是在日常斗争中培养，在革命活动中锤炼的。
The beauty of mathematics only shows itself to more patient followers.