Beyond Good and Evil by Friedrich Nietzsche Chapter 3 Page 37

the actual world in which they find it difficult enough to live — this very difficulty being necessary.

62. To be sure — to make also the bad counter-reckoning against such religions, and to bring to light their secret dangers — the cost is always excessive and terrible when religions do NOT operate as an educational and disciplinary medium in the hands of the philosopher, but rule voluntarily and PARAMOUNTLY, when they wish to be the final end, and not a means along with other means. Among men, as among all other animals, there is a surplus of defective, diseased, degenerating, infirm, and necessarily suffering individuals; the successful cases, among men also, are always the exception; and in view of the fact that man is THE ANIMAL NOT YET PROPERLY ADAPTED TO HIS ENVIRONMENT, the rare exception.