What is the short meaning of the long speech?

Let him that sows the serpent's teeth not hope to reap a joyous harvest. Every crime has, in the moment of its perpetration, its own avenging angel,--dark misgivings at the inmost heart.

To the fool-king belongs the world.

Deeper meaning resides in the fairy tales told to me in my childhood than in the truth that is taught by life.

Even now, nature is the only flame, on which the poetic spirit feeds; from it alone it draws all its power, to it alone it speaks even in the artificial, in the man engaged in culture.

We are too prone to find fault; let us look for some of the perfections.

Against stupidity the very gods themselves contend in vain.