Leonardo da Vinci
Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.
More quotes and aphorisms
It is thrifty to prepare...A tree is known by its fruit...No great art has ever been made without the artist...At every step the child should be allowed to meet...Scenery is fine — but human nature is finer...Perfection is not attainable...
