Since my logic aims to teach and instruct the understanding, not that it may with the slender tendrils of the mind snatch at and lay hold of abstract notions (as the common logic does), but that it may in very truth dissect nature, and discover the virtues and actions of bodies, with their laws as determined in matter; so that this science flows not merely from the nature of the mind, but also from the nature of things.

Fortitude is the marshal of thought, the armor of the will, and the fort of reason.

Studies serve for delight, for ornaments, and for ability.

If a man's wit be wandering, let him study the mathematics; for in demonstrations, if his wit be called away never so little, he must begin again.

Aristotle... a mere bond-servant to his logic, thereby rendering it contentious and well nigh useless.

If the hill will not come to Mahomet, Mahomet will go to the hill.

You see, painting has now become, or all art has now become completely a game, by which man distracts himself. What is fascinating actually is, that it's going to become much more difficult for the artist, because he must really deepen the game to become any good at all.