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

Just as iron rusts from disuse, and stagnant water putrefies, or when cold turns to ice, so our intellect wastes unless it is kept in use.

Let not your rage or malice destroy a life.

Simplicity is the ultimate sophistication.

There are three classes of people: those who see, those who see when they are shown, those who do not see.

The eye - which sees all objects reversed - retains the images for some time.

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.