The pleasure of the senses is always regulated in accordance with the imagination. Man can aspire to felicity only by serving all the whims of his imagination.

The imagination is the spur of delights... all depends upon it, it is the mainspring of everything; now, is it not by means of the imagination one knows joy? Is it not of the imagination that the sharpest pleasures arise?

At all times, in every century, every age, there has been such a connection between despotism and religion that it is infinitely apparent and demonstrated a thousand times over, that in destroying one, the other must be undermined, for the simple reason that the first will always put the law into the service of the second.

My manner of thinking, so you say, cannot be approved. Do you suppose I care? A poor fool indeed is he who adopts a manner of thinking to suit other people! My manner of thinking stems straight from my considered reflections; it holds with my existence, with the way I am made. It is not in my power to alter it; and were it, I'd not do so.

Any enjoyment is weakened when shared.

Hope is the most sensitive part of a poor wretch's soul; whoever raises it only to torment him is behaving like the executioners in Hell who, they say, incessantly renew old wounds and concentrate their attention on that area of it that is already lacerated.

Nature has not got two voices, you know, one of them condemning all day what the other commands.