Makes perfect sense to me. You know what I liked best... The little caption below!
If know one dates them, then no one will marry them. Then they will have no offspring. Then they will be extinct.
In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.