Patience serves as a protection against wrongs as clothes do against cold. For if you put on more clothes as the cold increases, it will have no power to hurt you. So in like manner you must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.
Leonardo da VinciThe worst evil which can befall the artist is that his work should appear good in his own eyes.
Leonardo da VinciLearning is the only thing the mind never exhausts, never fears, and never regrets.
Leonardo da Vinci