“There is no such thing as a perfectly happy or perfectly unhappy man in the world. One has more happiness in his life and another more unhappiness, and the same circumstance may produce widely different effects on individuals of different temperaments.”

“I cannot think without a shudder of contracting any obligation towards death. I hate death; for, happy or miserable, life is the only blessing which man possesses, and those who do not love it are unworthy of it.”

“Man is a free agent; but he is not free if he does not believe it, for the more power he attributes to Destiny, the more he deprives himself of the power which God granted him when he gave him reason.”

“Beauty without wit offers nothing but the enjoyment of its material charms, whilst witty ugliness captivates by the charms of the mind, and at last fulfils all the desires of the man it has captivated.”

“Cultivating whatever gave pleasure to my senses was always the chief business of my life; I have never found any occupation more important. Feeling that I was born for the sex opposite mine, I have always loved it and done all that I could to make myself loved by it. I have also been extravagantly fond of good food and irresistibly drawn by anything which could excite curiosity.”

“The same principle that forbids me to lie does not allow me to tell the truth.”

“I often had no scruples about deceiving nitwits and scoundrels and fools when I found it necessary. ...We avenge intelligence when we deceive a fool, and... deceiving a fool is an exploit worthy of an intelligent man. What has infused my very blood with an unconquerable hatred of the whole tribe of fools from the day of my birth is that I become a fool myself when I am in their company.”