734 Quotes by Leonardo da Vinci

Iron rusts from disuse; water loses its purity from stagnation even so does inaction sap the vigor of the mind.

The surface of the sea is equidistant from the center of the earth and forms the deepest surface in the world. The lowest parts of the mountains are found where they join their valleys, and in the extreme depths of these valleys are the rivers which formed them and which reach their ultimate depth in their concourse into the ultimate stream, where they lose their forms and names; and the deepest part of the ultimate stream is the sea where the wandering kindred streams find repose.

Ask for advise from those who evidence good self-discipline.

Anyone who conducts an argument by appealing to authority is not using his intelligence, he is just using his memory.

Once you have tasted the taste of sky, you will forever look up.

A deaf and dumb person who sees two men in conversation may nevertheless understand from the attitudes and gestures of the speakers, how well their discussion is getting along.

He who does not control his impulse classes himself with beasts.

The first step towards getting somewhere is to decide that you are not going to stay where you are.

Learn diligence before speedy execution