Leonardo da Vinci

Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.

Leonardo da Vinci

Whoever despises the high wisdom of mathematics nourishes himself on delusion and will never still the sophistic sciences whose only product is an eternal uproar.

Leonardo da Vinci

Whoever in discussion adduces authority uses not intellect but rather memory.

Leonardo da Vinci

Why are the bones of great fishes, and oysters and corals and various other shells and sea-snails, found on the high tops of mountains that border the sea, in the same way in which they are found in the depths of the sea?

Leonardo da Vinci

Why does the eye see a thing more clearly in dreams than the imagination when awake?

Leonardo da Vinci

Wood feeds the fire which burns it.

Leonardo da Vinci

You grow in reputation like bread in the hands of a child.

Leonardo da Vinci

You must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.

Leonardo da Vinci

You should prefer a good scientist without literary abilities than a literate one without scientific skills

Leonardo da Vinci

You will never have a greater or lesser dominion than that over yourself.

Leonardo da Vinci