Limitation of aims is the mother of wisdom and the secret of achievement.
Johann Wolfgang von GoetheA flippant, frivolous man may ridicule others, may controvert them, scorn them; but he who has any respect for himself seems to have renounced the right of thinking meanly of others.
Johann Wolfgang von GoetheNature does not suffer her veil to be taken from her, and what she does not choose to reveal to the spirit, thou wilt not wrest from her by levers and screws.
Johann Wolfgang von Goethe