Customs do not concern themselves with right or wrong or reason. But they have to be obeyed; one reasons all around them until he is tired, but he must not transgress them, it is sternly forbidden.
But there is another reason for the high repute of mathematics: it is mathematics that offers the exact natural sciences a certain measure of security which, without mathematics, they could not attain.
You don't expect me to know what to say about a play when I don't know who the author is, do you? . . . If it's by a good author, it's a good play, naturally. That stands to reason.