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.

What we learn from history is that people don't learn from history.

Truth is, everybody is going to hurt you; you just gotta find the ones worth suffering for.

Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.

公司最大的资产是员工，投资他们，他们就会推动成功。