When you borrow a man's car, always return it with a tank of gas.

Should seize every opportunity to prove to everyone that you, prove that you are able to meet the challenge.

To be a Christian without prayer is no more possible than to be alive without breathing.

解析：良知即天理。

A miner's skill and dedication are just as valuable as the coal they bring to the surface.

技术最终要服务于人，提升人类的生活质量。