理解的改进有两个目的：第一，我们自己知识的增加；第二，使我们能够将知识传授给他人。
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
心理学家必须不带预设地研究心灵。
只有在梦想中，人才能真正自由，从来如此也将永远如此。
Share your profits with all your associates, and treat them as partners. In turn, they will treat you as a partner, and together you will all perform beyond your wildest expectations.