Immanuel Kant. Critique of pure reason (№ 359476)

The ability to put reasonable questions have already been important and necessary a sign of intelligence or insight. If the question itself is meaningless and useless demands answers, but shame for the Enquirer he has sometimes the disadvantage that inadvertently encourages the listener to absurd answers, and creates a ridiculous spectacle: one (according to the ancients) is milking a goat while another holds a sieve underneath.