Almost every famous person at least once in their life said something that was remembered by the society, and considered meaningful, important or just funny. Those quotations can be mentioned in various situations. Often they are used in speeches or in a humorous way. In order to find some of them grub around.
Johannes trithemius
Date: October 8, 2007
Speak of things public to the public, but of things lofty and secret only to the loftiest and most private of your friends. Hay to the ox and sugar to the parrot.