笑对人有益，只要不出人命就好。

如果你因失去了太阳而流泪，那么你也将失去群星了。

The mind is a dynamic interplay of processes.

Reason is， and ought only to be the slave of the passions， and can never pretend to any other office than to serve and obey them.

The beauty of mathematics only shows itself to more patient followers.

La literatura no es un espejo para reflejar la realidad, sino un martillo para darle forma.

每个数学问题都有一个解决方案；只是需要时间和努力去找到它。