I study myself more than any other subject; it is my metaphysic, and my physic.

He that will not reason is a bigot; he that cannot reason is a fool; he that dares not reason is a slave.

The last and greatest herald of Heaven's King, / Girt with rough skins, hies to the deserts wild.

He who will not reason is a bigot; he who cannot is a fool; and he who dares not is a slave.

Sleep, Silence's child, sweet father of soft rest, Prince whose approach peace to all mortals brings Indifferent host to shepherds and kings;Sole comforter to minds with grief opprest.

Iron sharpens iron; scholar, the scholar.

Put a bridle on thy tongue; set a guard before thy lips, lest the words of thine own mouth destroy thy peace... on much speaking cometh repentance, but in silence is safety.

He who dares not (reason), is a slave.

Study what thou art Whereof thou art a part What thou knowest of this art This is really what thou art. All that is without thee also is within.