Nature is so delightful and abundant in its variations that among trees of the same kind there would not be found one which nearly resembles another, and not only the plants as a whole, but among their branches, leaves, and fruit, will not be found one which is precisely like another.

Water is the driving force of all nature.

Poor is the man who desires a lot

While you are alone you are entirely your own master and if you have one companion you are but half your own, and the less so in proportion to the indiscretion of his behavior.

The color of the object illuminated partakes of the color of that which illuminates it.

The eye which turns from a white object in the light of the sun and goes into a less fully lighted place will see everything as dark.

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?