希望存在于任何黑暗中。

To read is to travel without moving.

市场是人类创造物，和所有人类创造物一样，它们可以被改进。

The only real voyage of discovery consists not in seeking new landscapes, but in having new eyes.

The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

I am always glad to think that my education was, for the most part, informal, and had its roots in the soil.

你唯一的限制就是自己设定的限制。