A proof tells us where to concentrate our doubts.

文学的本质在于捕捉人类经验的瞬息万变，并将其永恒地铭刻在文字中。

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

每一次失败都是一次宝贵的经验。

"When you do something best in life, you don’t really want to give that up – and for me it’s tennis."

当行动与言语一致时，信任就建立了。