发明是需求之母。
Invention is the mother of necessity.
One of the great mistakes is to judge policies and programs by their intentions rather than their results.
言语有治愈伤口的力量,也有加深伤口的可能;作家必须明智地选择。
The best way to learn mathematics is to do mathematics.
我们讲述的故事塑造了我们生活的世界。
The two greatest enemies of the equity fund investor are expenses and emotions.