Drunkenness is temporary suicide.

Dogma demands authority, rather than intelligent thought, as the source of opinion; it requires persecution of heretics and hostility to unbelievers; it asks of its disciples that they should inhibit natural kindliness in favor of systematic hatred.

All knowledge, we feel, must be built up upon our instinctive beliefs; and if these are rejected, nothing is left.

Any philosophy worth taking seriously would have to be built upon a firm foundation of unyielding despair.

Speaking psycho-analytically, it may be laid down that any "great ideal" which people mention with awe is really an excuse for inflicting pain on their enemies. Good wine needs no bush, and good morals need no bated breath.

Philosophy is an unusually ingenious attempt to think fallaciously.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.