The essence of mathematics lies in its freedom.
The final reward of the dead is to live on in the memory of the living.
你的工作将填满你生活的一大部分，唯一让你真正满意的方法是做你认为伟大的工作。
The best way to help people is not to do things for them, but to help them do things for themselves.
帮助他人的最好方式不是为他们做事，而是帮助他们为自己做事。
The most profound discoveries often come from the simplest observations.
Don't cry， I'm sorry， you must understand， I am sorry to deceive you so much， but this is life.
生活是绘画，不是做算术。