I want to show how a human being, condemned to death, looked with free eyes upon the world, through the grated window of his prison, and discovered the great purpose, harmony, and beauty of the universe--to the disgrace of those fools who, being free, living a life of plenty and happiness, slander life disgustingly.
Some of my visitors reproach me for being "haughty"; they ask me where I secured the right to teach and to preach; cruel in their reasoning, they would like to drive away even the smile from the face of the man who has been imprisoned for life as a murderer.
No.

Just as the kind and bright smile will not leave my lips, as an evidence of a clear and unstained conscience, so my soul will never be darkened, my soul, which has passed firmly through the defiles of life, which has been carried by a mighty will power across these terrible abysses and bottomless pits, where so many daring people have found their heroic, but, alas! fruitless, death.
And if the tone of my confessions may sometimes seem too positive to my indulgent reader, it is not at all due to the absence of modesty in me, but it is due to the fact that I firmly believe that I am right, and also to my firm desire to be useful to my neighbour as far as my faint powers permit.
Here I must apologise for my frequent references to my "Diary of a Prisoner," which is unknown to the reader; but the fact is that I consider the complete publication of my "Diary" too premature and perhaps even dangerous.

Begun during the remote period of cruel disillusions, of the shipwreck of all my beliefs and hopes, breathing boundless despair, my note book bears evidence in places that its author was, if not in a state of complete insanity, on the brink of insanity.
And if we recall how contagious that illness is, my caution in the use of my "Diary" will become entirely clear.
O, blooming youth! With an involuntary tear in my eye I recall your magnificent dreams, your daring visions and outbursts, your impetuous, seething power--but I should not want your return, blooming youth! Only with the greyness of the hair comes clear wisdom, and that great aptitude for unprejudiced reflection which makes of all old men philosophers and often even sages..