Mathematics is a dialogue between the past and the present.
书籍是最安静且最恒久的朋友。
当你受到攻击时,狠狠地反击。
不要试图让别人喜欢你;尝试让他们尊敬你。
The human being is not the lord of beings, but the shepherd of being.
What we do may be small, but it has a huge impact.