What a chimera then is man. What a novelty! What a monster... what a contradiction, what a prodigy

Clarity of mind means clarity of passion, too; this is why a great and clear mind loves ardently and sees distinctly what it loves.

Nothing is so important to man as his own state; nothing is so formidable to him as eternity. And thus it is unnatural that thereshould be men indifferent to the loss of their existence and to the perils of everlasting suffering.

What matters it that man should have a little more knowledge of the universe? If he has it, he gets little higher. Is he not always infinitely removed from the end, and is not the duration of our life equally removed from eternity, even if it lasts ten years longer?

Not to be mad is another form of madness

The greater intellect one has, the more originality one finds in men. Ordinary persons find no difference between men.

One-half of life is admitted by us to be passed in sleep, in which, however, it may appear otherwise, we have no perception of truth, and all our feelings are delusions; who knows but the other half of life, in which we think we are awake, is a sleep also, but in some respects different from the other, and from which we wake when we, as we call it, sleep. As a man dreams often that he is dreaming, crowding one dreamy delusion on another.