“Tis not unreasonable for me to prefer the destruction of the whole world to the scratching of my finger.”

“Your corn is ripe today; mine will be so tomorrow. 'Tis profitable for us both, that I should labour with you today, and that you should aid me tomorrow. I have no kindness for you, and know you have as little for me. I will not, therefore, take any pains upon your account; and should I labour with you upon my own account, in expectation of a return, I know I should be disappointed, and that I should in vain depend upon your gratitude. Here then I leave you to labour alone; You treat me in the same manner. The seasons change; and both of us lose our harvests for want of mutual confidence and security.”

“[T]he Old Testament, [...] if considered as a general rule of conduct, would lead to consequences destructive of all principles of humanity and morality.”

“When I shall be dead, the principles of which I am composed will still perform their part in the universe, and will be equally useful in the grand fabric, as when they composed this individual creature. The difference to the whole will be no greater betwixt my being in a chamber and in the open air. The one change is of more importance to me than the other; but not more so to the universe.”

“When principles are so absurd and so destructive of human society, it may safely be averred, that the more sincere and the more disinterested they are, they only become the more ridiculous and the more odious.”

“It is indeed a mortifying reflection to those who are actuated by the love of fame, so justly denominated the last infirmity of noble minds, that the wisest legislator and most exalted genius that ever reformed or enlightened the world can never expect such tributes of praise as are lavished on the memory of pretended saints, whose whole conduct was probably to the last degree odious or contemptible, and whose industry was entirely directed to the pursuit of objects pernicious to mankind. It is only a conqueror, a personage no less entitled to our hatred, who can pretend to the attainment of equal renown and glory.”

“If my life be not my own, it were criminal for me to put it in danger, as well as to dispose of it; nor could one man deserve the appellation of hero, whom glory or friendship transports into the greatest dangers, and another merit the reproach of wretch or misereant who puts a period to his life, from the same or like motives.”