A clever man without wisdom is like a beautiful flower without fragrance.
The moment is timeless.
If you call painting dumb poetry, the painter may call poetry blind painting.
Just as iron rusts from disuse... even so does inaction spoil the intellect.
Those who are enamoured of practice without science are like a pilot who goes into a ship without rudder or compass and never has any certainty of where he is going. Practice should always be based upon a sound knowledge of theory.
When Fortune comes, seize her in front with a sure hand, because behind she is bald.