To any white body receiving the light from the sun, or the air, the shadows will be of a bluish cast.

I roamed the countryside searching for answers to things I did not understand. Why shells existed on the tops of mountains. How the various circles of water form around the spot which has been struck by a stone, and why a bird sustains itself in the air.

The water you touch in a river is the last of that which has passed, and the first of that which is coming. Thus it is with time present. Life, if well spent, is long.

A bird as it rises always sets its wings above the wind and without beating them, and it always moves in a circular movement.

The body of the earth is of the nature of a fish, a grampus or sperm whale, because it draws water as its breath instead of air.

A single and distinct luminous body causes stronger relief in the objects than a diffused light; as may be seen by comparing one side of a landscape illuminated by the sun, and one overshadowed by clouds, and illuminated only by the diffused light of the atmosphere.