Those who, in debate, appeal to their qualifications, argue from memory, not from understanding.

He who can copy can do.

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.

To discover the soul living in somebody's body, we watch the surrounding of the body, and if it's messy and disordered, so is the soul.

Realize that everything connects to everything else.

The grave will fall in upon him who digs it.

To such an extent does nature delight and abound in variety that among her trees there is not one plant to be found which is exactly like another; and not only among the plants, but among the boughs, the leaves and the fruits, you will not find one which is exactly similar to another.