A hallucination is a fact, not an error; what is erroneous is a judgment based upon it.

A smile happens in a flash, but its memory can last a lifetime.

It is essential to happiness that our way of living should spring from our own deep impulses and not from the accidental tastes and desires of those who happen to be our neighbors, or even our relations.

In the daily lives of most men and women, fear plays a greater part than hope: they are more filled with the thought of the possessions that others may take from them, than of the joy that they might create in their own lives and in the lives with which they come in contact. It is not so that life should be lived.

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

There is no logical impossibility in the hypothesis that the world sprang into being five minutes ago, exactly as it then was, with a population that "remembered" a wholly unreal past. There is no logically necessary connection between events at different times; therefore nothing that is happening now or will happen in the future can disprove the hypothesis that the world began five minutes ago.

If everything has a cause, then God must have a cause. If there can be anything without a cause, it may just be the world as God.