In the end, all we have are words.

译文：选择妻子要看重品德而不要看重容貌，交朋友要看重在内心而不要看重钱财。赏析：不管是娶妻嫁人还是交朋友，我们都要注重对方的人品好坏。

幸福不是现成的东西。它来自你自己的行动。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

The only limit to our realization of tomorrow is our doubts of today.