The different accidents of life are not so changeable as the feelings of human nature.

After days and nights of incredible labor and fatigue, I succeeded in discovering the cause of generation and life. Nay, more, I became myself capable of bestowing animation upon lifeless matter.

To examine the causes of life, we must first have recourse to death.

Ah! it is well for the unfortunate to be resigned, but for the guilty there is no peace.

Life, although it may only be an accumulation of anguish, is dear to me, and I will defend it.

The world to me was a secret, which I desired to discover; to her it was a vacancy, which she sought to people with imaginations of her own.

But I am a blasted tree; the bolt has entered my soul; and I felt then that I should survive to exhibit what I shall soon cease to be - a miserable spectacle of wrecked humanity, pitiable to others and intolerable to myself.