Shape your heart to front the hour, but dream not that the hours will last.
Let that which stood in front go behind, let that which was behind advance to the front, let bigots, fools, unclean persons, offer new propositions, let the old propositions be postponed.
What lies behind you and what lies in front of you, pales in comparison to what lies inside of you.
The mind of the painter must resemble a mirror, which always takes the colour of the object it reflects and is completely occupied by the images of as many objects as are in front of it.
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.