Friedrich von Schiller

Keep true to the dreams of thy youth.

It does not prove a thing to be right because the majority say it is so.

With stupidity the gods themselves contend in vain.

With stupidity the gods themselves struggle in vain.
Friedrich von Schiller - Cohen & Cohen 1960, The Penguin dictionary of quotations
Against stupidity the gods themselves struggle in vain.
(Mit der Dummheit kaempfen Goetter selbst vergebens)

- Friedrich von Schiller