The grandeur of man is measured according to what he seeks and according to the urgency by which he remains a seeker.

Basic Questions of Philosophy: Selected "Problems" of "Logic" (Grundfragen der Philosophie: Ausgewählte "Probleme" der "Logik" (1984), translated by Richard Rojcewicz and André Schuwer, Indiana University Press, 1994, ISBN 0253004381, p. 7)