If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.

The world is full of obvious things which nobody by any chance ever observes.

现代采石必须将地质学的智慧与工程的创新相结合。

"The best way to innovate is to embrace failure."

解释：神态傲慢，谁还愿意和你相处呢？最洁白的东西好像十分黑暗，最道德的人好像有所不足。