He only moves toward the perfection of his art whose criticism surpasses his achievement. — Leonardo da Vinci
The mind that engages in subjects of too great variety becomes confused and weakened. — Leonardo da Vinci
A good memory, which nature has endowed us with, causes things long past to seem present. — Leonardo da Vinci
It is the infinite alone that cannot be attained, for if it could it would become finite. — Leonardo da Vinci
Perspective is nothing more than a rational demonstration applied to the consideration — Leonardo da Vinci
He who does not understand the supreme certainty of mathematics is wallowing in confusion. — Leonardo da Vinci
A man of supreme folly: his life flies away while he is merely hoping to enjoy it. — Leonardo da Vinci
Envy wounds with false accusations, that is with detraction, a thing which scares virtue. — Leonardo da Vinci