As Will Rogers would have said, "There is no such thing as a free variable."

The customer may not always be right, but they are always the customer.

在不幸中所表现出来的勇气，通常总是使卑怯的心灵恼怒，而使高尚的心灵喜悦的。

Truth is often stranger than fiction.

点击化学不仅是一种方法，更是一种追求合成简单和可靠的哲学。