The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.

只有当人能够察看自己的内心深处时，他的视野才会变得清晰起来。向外看的人是在梦中、向内看的人是清醒的人。

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。

The essence of a good life is to live without any sense of hurry.

The concept of law is a complex one, involving not only rules but also principles, policies, and standards.

幸せは、小さな瞬間の積み重ねだ。

自由是唯一值得为之奋斗的东西。