Necessity is cruel, but it is the only test of inward strength. Every fool may live according to his own likings.

Idea and experience will never coincide in the center; only through art and action are they united.

The way you see people is the way you treat them, and the way you treat them is what they become.

Should I not be proud, when for twenty years I have had to admit to myself that the great Newton and all the mathematicians and noble calculators along with him were involved in a decisive error with respect to the doctrine of color, and that I among millions was the only one who knew what was right in this great subject of nature?

A human being needs only a small plot of ground on which to be happy, and even less to lie beneath.

The march of intellect, which licks all the world into shape, has even reached the devil.

The true poet is called to take in the splendor of the world and for that reason will always be inclined to praise rather than tofind fault.