Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Philosophy is the art of asking the right questions and seeking wisdom in the unknown.

学习数学的最好方法就是去做数学。

I think it's important to give back and help others.

Dreams are the seeds of reality.

The study of psychology is the study of life's problem-solving mechanisms.

过去从未真正消失；它在我们今天所做的选择中继续存在。