I shall consider human actions and desires in exactly the same manner, as though I were concerned with lines, planes and solids.

Nothing in nature is by chance... Something appears to be chance only because of our lack of knowledge.

Happiness is a virtue, not its reward.

Nature offers nothing that can be called this man's rather than another's; but under nature everything belongs to all.

If slavery, barbarism and desolation are to be called peace, men can have no worse misfortune.

Will and intellect are one and the same thing.

Men will find that they can ... avoid far more easily the perils which beset them on all sides by united action.