When you look at a wall spotted with stains...you may discover a resemblance to various landscapes, beautiful with mountains, rivers, rocks, trees. Or again, you may see battles and figures in action, or strange faces and costumes, and an endless variety of objects which you could reduce to complete and well-drawn figures.

The eye, the window of the soul, is the chief means whereby the understanding can most fully and abundantly appreciate the infinite works of Nature; and the ear is second.

He turns not back who is bound to a star.

A bird is an instrument working according to mathematical law, which instrument it is within the capacity of man to reproduce with all its movements.

The vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it.

The smallest feline is a masterpiece.

Nothing can be loved or hated unless it is first known.