If there were in the world today any large number of people who desired their own happiness more than they desired the unhappiness of others, we could have a paradise in a few years.

If all our happiness is bound up entirely in our personal circumstances it is difficult not to demand of life more than it has to give.

Of all forms of caution, caution in love is perhaps the most fatal to true happiness.

The megalomaniac differs from the narcissist by the fact that he wishes to be powerful rather than charming, and seeks to be feared rather than loved. To this type belong many lunatics and most of the great men of history.

Religions, which condemn the pleasures of sense, drive men to seek the pleasures of power. Throughout history power has been the vice of the ascetic.

Man needs, for his happiness, not only the enjoyment of this or that, but hope and enterprise and change.

Religion is something left over from the infancy of our intelligence, it will fade away as we adopt reason and science as our guidelines.

We are faced with the paradoxical fact that education has become one of the chief obstacles to intelligence and freedom of thought.

So far as I can remember, there is not one word in the Gospels in praise of intelligence.

There is much pleasure to be gained from useless knowledge.