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.

I am never weary of being useful... In serving others I cannot do enough. No labor is sufficient to tire me.

It's not enough that you believe what you see. You must also understand what you see.

We, by our arts may be called the grandsons of God.

You will never have a greater or lesser dominion than that over yourself.

The painter who draws merely by practice and by eye, without any reason, is like a mirror which copies every thing placed in front of it without being conscious of their existence.

If you are alone you belong entirely to yourself. If you are accompanied by even one companion you belong only half to yourself or even less in proportion to the thoughtlessness of his conduct and if you have more than one companion you will fall more deeply into the same plight.