It is science, and not religion, which has taught men that things are complex and difficult to understand.

Maniacal suicide. —This is due to hallucinations or delirious conceptions. The patient kills himself to escape from an imaginary danger or disgrace, or to obey a mysterious order from on high, etc.

Man seeks to learn, and man kills himself because of the loss of cohesion in his religious society; he does not kill himself because of his learning. It is certainly not the learning he acquires that disorganizes religion; but the desire for knowledge wakens because religion becomes disorganized.

A monomaniac is a sick person whose mentality is perfectly healthy in all respects but one; he has a single flaw, clearly localized. At times, for example, he has an unreasonable and absurd desire to drink or steal or use abusive language; but all his other acts and all his other thoughts are strictly correct.

Sadness does not inhere in things; it does not reach us from the world and through mere contemplation of the world. It is a product of our own thought. We create it out of whole cloth.

Irrespective of any external, regulatory force, our capacity for feeling is in itself an insatiable and bottomless abyss.

I can be free only to the extent that others are forbidden to profit from their physical, economic, or other superiority to the detriment of my liberty.