释义：种植荆棘会得到刺，种植桃李会得到阴凉。

You are not the opinion of somebody who doesn't know you.

以客观角度来看，这个世界确实变得更好，但同时也变得更糟。前进一步，又倒退一步，仿佛宇宙在科技进步和文化倒退间达成平衡，使人类的进展呈钟形曲线。

I do not wish them [women] to have power over men; but over themselves.

"To live is the rarest thing in the world. Most people exist, that is all."

动态规划理论基于最优性原理，该原理指出，无论初始状态和初始决策如何，剩余决策必须构成关于第一个决策所导致状态的最优策略。