The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

The beauty of computational theory lies in its ability to abstract the complexities of the world into manageable and understandable models.

生活中唯一真正的失败是不忠于自己所知道的最好的东西。

人一定要懂得“礼”之后才能产生恭敬之心，产生恭敬之心以后才能有所尊敬，有所礼让。

在我们社会中，勇气的反面不是怯懦，而是从众。