734 Quotes by Leonardo da Vinci

It is useful to constantly observe, note, and consider.

The limiting surface of one thing is the beginning of another.

We know more about the movement of celestial bodies than about the soil underfoot.

He turns not back who is bound to a star.

There is no higher or lower knowledge, but one only, flowing out of experimentation.

No human investigation can claim to be scientific if it doesn't pass the test of mathematical proof.

Fear arises sooner than anything else.

The eye is the window of the human body through which it feels its way and enjoys the beauty of the world.

The human being, creature of eyes, needs the image.