Never lose sight of this important truth, that no one can be truly great until he has gained a knowledge of himself, a knowledge which can only be acquired by occasional retirement.
Johann Georg Ritter von ZimmermannMany have been ruined by their fortunes, and many have escaped ruin by the want of fortune. To obtain it the great have become little, and the little great.
Johann Georg Ritter von ZimmermannFools with bookish knowledge art children with edged weapons; they hurt themselves, and put others in pain.
Johann Georg Ritter von Zimmermann