I was benevolent and good; misery made me a fiend. Make me happy, and I shall again be virtuous.

A solitary being is by instinct a wanderer.

I leave a sad and bitter world; and if you remember me, and think of me as of one unjustly condemned, I am resigned to the fate awaiting me.

Curiosity, earnest research to learn the hidden laws of nature, gladness akin to rapture, as they unfolded to me, are among the earliest sensations I can remember.

Unhappy man! Do you share my maddness? Have you drunk also of the intoxicating draught? Hear me; let me reveal my tale, and you will dash the cup from your lips!

Nothing is so painful to the human mind as a great and sudden change.

It is true, we shall be monsters, cut off from all the world; but on that account we shall be more attached to one another.