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

I have made a ceaseless effort not to ridicule, not to bewail, not to scorn human actions, but to understand them.

In the mind there is no absolute or free will; but the mind is determined to wish this or that by a cause, which has also been determined by another cause, and this last by another cause, and so on to infinity.

Happiness is a virtue, not its reward.

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

I call him free who is led solely by reason.

I make this chief distinction between religion and superstition, that the latter is founded on ignorance, the former on knowledge.