It is profitable wisdom to know when we have done enough: Much time and pains are spared in not flattering ourselves against probabilities.
William PennInterest has the security, though not the virtue of a principle. As the world goes, it is the surest side; for men daily leave both relations and religion to follow it.
William PennWherefore, brethren, let us be careful neither to out-go our guide, nor yet loiter behind him; since he that makes haste, may miss his way, and he that stays behind, lose his guide.
William Penn