局部和全局现象之间的相互作用是数论中反复出现的主题。

A chair should first embrace the body, then inspire the mind.

"To live is the rarest thing in the world. Most people exist, that is all."

解释：影子的弯曲与正直是随身体而变化的，根源不在影子自身；自己的屈曲与伸直是随外物而变化的，而不在于个人的主观意志。这就是保持谦退才能使自己处世为先的道理。

Only continuous learning can keep us invincible in fierce competition.

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

"History is not just about the past; it's about the present and the future too."