When duty whispers low, Thou must, The youth replies, I can.
As picture teaches the colouring, so sculpture the anatomy of form.
By going one step further back in thought, discordant opinions are reconciled by being seen to be two extremes of one principle, and we can never go so far back as to preclude a still higher vision.
All necessary truth is its own evidence.
Hitch your wagon to a star.
Practice radical humility." He (or she)who masters the art of humility cannot be humiliated.