商业中最危险的一句话是:"我们一直都是这样做的。"
The meaning of a sentence is not just in the words themselves, but also in the illocutionary act it performs.
科学家研究自然并非因为它有用;他研究它是因为他从中获得乐趣,而他从中获得乐趣是因为它是美丽的。