相赠以芍药，相招以文无。
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。
机械是我们这个时代的伟大文明推动者。
如果我们不考虑长期影响，开采效率就毫无意义。
The best way to learn mathematics is to do mathematics.
The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths.
在这个世界上，没有人能使你倒下，假如你自己的信念还站立的话。