To fulfill the highest most truthful expression of yourself as a human being. You want to max out your humanity by using your energy to lift yourself up， your family and the people around you.

Theorems are the milestones of mathematics.

The brain is a machine assembled not to understand itself, but to survive. It is a machine for making decisions that lead to survival.

表演的挑战在于在每个角色中找到人性，无论他们看起来与你有多么不同。

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.