“We must not attach knowledge to the mind, we have to incorporate it there.”

“To learn that we have said or done a foolish thing, that is nothing; we must learn that we are nothing but fools, a far broader and more important lesson.”

“Though the ancient poet in Plutarch tells us we must not trouble the gods with our affairs because they take no heed of our angers and disputes, we can never enough decry the disorderly sallies of our minds.”

“No matter that we may mount on stilts, we still must walk on our own legs. And on the highest throne in the world, we still sit only on our own bottom.”

“Every other knowledge is harmful to him who does not have knowledge of goodness.”

“It is an absolute perfection and virtually divine to know how to enjoy our being rightfully. We seek other conditions because we do not understand the use of our own, and go outside of ourselves because we do not know what it is like inside. Yet there is no use our mounting on stilts, for on stilts we must still walk on our own legs. And on the loftiest throne in the world we are still sitting only on our own rump.”

“It is not reasonable that art should win the place of honor over our great and powerful mother Nature. We have so overloaded the beauty and richness of her works by our inventions that we have quite smothered her.”