最终，我们记住的不是敌人的话语，而是朋友的沉默。
"In the end, we will remember not the words of our enemies, but the silence of our friends."
集中注意力的能力对于学习、记忆和复杂任务的表现至关重要。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
化学的乐趣在于看到不可见的东西变得可见。