Ill-digested principles are, if anything, worse than ill-digested food, for the latter harms the body and there is cure for it, whereas the former ruins the soul and there is no cure for it.
All empty souls tend to extreme opinion. It is only in those who have built up a rich world of memories and habits of thought that extreme opinions affront the sense of probability. Propositions, for instance, which set all the truth upon one side can only enter rich minds to dislocate and strain, if they can enter at all, and sooner or later the mind expels them by instinct.
We must see that consciousness is neither an isolated soul nor the mere function of a single nervous system, but of that totality of interrelated stars and galaxies which makes a nervous system possible.
It is unpardonable conceit not to laugh at your own jokes. Joking is undignified; that is why it is so good for one's soul. Do not fancy you can be a detached wit and avoid being a buffoon; you cannot. If you are the Court Jester you must be the Court Fool.
Wonderful nature has a double meaning, which dazzles great minds and blinds uncultivated souls. When man is ignorant, when the desert is filled with visions, the darkness of solitude is added to the darkness of intelligence; hence, in man, the possibilities of perdition