解释：以芍药相赠，以文无（一种中药）相招，展现了中药在人际交往中的特殊意义。

"And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected."

"The best way to predict the future is to create it."

概率论是我们处理不确定性的唯一工具。

世界上最可靠的就是你自己。