Life is measured by thought and action，not by time.

在化学中，就像在生活中一样，最深刻的真理往往是最简单的。

The stranger is an element of the group itself, not unlike the poor and sundry 'inner enemies'—an element whose membership within the group involves both being outside it and confronting it.

我们知识的边界就是我们好奇心的前沿。