应该让材料自己说话。
Materials should be allowed to speak for themselves.
It is not enough to observe and experiment, theorize and calculate. One must also imagine.
不要害怕挑战，因为挑战让你成长。
能源危机是一个可以解决的问题——如果我们现在行动的话。
嫉妒是灵魂的肿瘤。