The improvement of the productive powers of labor, and the greater part of the skill, dexterity, and judgement with which it is anywhere directed or applied, seem to have been the effects of division of labor.

质量不是一种行为，而是一种习惯。

"I think children are naturally curious and open to new ideas, and that's something I try to capture in my books."

Entrepreneurship means never giving up and finding opportunities in difficulties.

挑战是伪装的机遇；拥抱它们并变得更强大。