It is always safe to learn, even from our enemies; seldom safe to venture to instruct, even our friends.

Expect not praise without envy until you are dead.

Philosophy is a goddess, whose head indeed is in heaven, but whose feet are upon earth; she attempts more than she accomplishes, and promises more than she performs.

It is much easier to ruin a man of principle than a man of none, for he may be ruined through his scruples. Knavery is supple and can bend; but honesty is firm and upright, and yields not.

All adverse and depressing influences can be overcome, not by fighting, by by rising above them.

It is sufficiently humiliating to our nature to reflect that our knowledge is but as she rivulet, our ignorance as the sea. On points of the highest interest, the moment we quit the light of revelation we shall find that Platonism itself is intimately connected with Pyrrhonism, and the deepest inquiry with the darkest doubt.

Like the rainbow, peace rests upon the earth, but its arch is lost in heaven. Heaven bathes it in hues of light--it springs up amid tears and clouds--it is a reflection of the eternal sun--it is an assurance of calm--it is the sign of a great covenant between God and man--it is an emanation from the distant orb of immortal light.