"Let us suppose that, in the future, the birth of a human being occurs without pain, and that science succeeds in protecting humans from every disease: in short, that the old age of these protected beings is fresh and vigorous, ending suddenly with a gentle and painless death (euthanasia). Death is the only thing we cannot take away and, consequently, we have before us a short and painless life. Is this a happy life? Let us examine it carefully. The citizens of our ideal state are human beings of gentle character and developed intelligence. They have, so to speak, been inculcated with a complete knowledge - free from absurdity and error - and however they reflect upon it, they will always consider it to be right. There are no more effects whose causes are enigmatic. Science has indeed reached its pinnacle and every citizen is satisfied with its achievements. The sense of beauty is powerfully displayed in everything. We cannot suppose that all are artists, yet everyone indeed possesses the capacity to enter easily into an aesthetic relation. They have been freed from all worries, for their work has been organized in an unprecedented manner and everyone is self-governing. Are they happy? They would be if they did not feel in themselves a terrible monotony and emptiness. Their needs have been taken away from them; they truly have neither worry nor suffering, but instead they have been seized by tedium. They have paradise on earth, but its atmosphere is stifling and suffocating. If they still had enough energy to endure such an existence until natural death, they would surely not have the heart to go through it again as rejuvenated beings."