Sex lies at the root of life, and we can never learn to reverence life until we know how to understand sex.

It is curious how there seems to be an instinctive disgust in Man for his nearest ancestors and relations. If only Darwin could conscientiously have traced man back to the Elephant or the Lion or the Antelope, how much ridicule and prejudice would have been spared to the doctrine of Evolution.

All the art of living lies in a fine mingling of letting go and holding on.

Had there been a Lunatic Asylum in the suburbs of Jerusalem, Jesus Christ would infallibly have been shut up in it at the outset of his public career. That interview with Satan on a pinnacle of the Temple would alone have damned him, and everything that happened after could have confirmed the diagnosis. The whole religious complexion of the modern world is due to the absence from Jerusalem of a Lunatic Asylum.

The second great channel through which the impulse towards the control of procreation for the elevation of the race is entering into practical life is by the general adoption, by the educated—of methods for the prevention of conception except when conception is deliberately desired.

Every ist writes his own autobiography.

Even the most scientific investigator in science, the most thoroughgoing Positivist, cannot dispense with fiction; he must at least make use of categories, and they are already fictions, analogical fictions, or labels, which give us the same pleasure as children receive when they are told the "name" of a thing.