Especially learn how to see.

Mechanics is the paradise of the mathematical sciences because by means of it one comes to the fruits of mathematics.

Art is the queen of all sciences communicating knowledge to all the generations of the world.

Shadow is the diminution alike of light and of darkness, and stands between darkness and light.

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?

Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen.

Love shows itself more in adversity than in prosperity; as light does, which shines most where the place is darkest.