The taboo against nakedness is an obstacle to a decent attitude on the subject of sex.

No satisfaction based upon self-deception is solid.

I am aware that many divines are far more marvelous than I am, and that I cannot wholly appreciate merits so far transcending my own. Nevertheless, even after making allowances under this head, I cannot but think that Omnipotence operating through all eternity might have produced something better.

The secrets to happiness include enterprise, exploration of one's interests and the overcoming of obstacles.

I say quite deliberately that the Christian religion, as organized in its Churches, has been and still is the principal enemy of moral progress in the world.

All human activity is prompted by desire.

The essence of the liberal outlook lies not in what opinions are held, but in how they are held; instead of being held dogmatically, they are held tentatively, and with a consciousness that new evidence may at any moment lead to their abandonment.