A method of solution is perfect if we can foresee from the start, and even prove, that following that method we shall attain our aim.

Running is not about being better than someone else. It's about being better than you used to be.

文学的职责是扰乱、质疑、动摇确定性。

人生之初，即有忧愁，与生俱来也。

科学的本质不是使简单的事物复杂化，而是使复杂的事物简单化。