Rudolf Eucken,
Ethics and Modern Thought: A Theory of Their Relations
“ What becomes of man and of human life, if the visible world means to him the only form of reality? He is then but part of nature—dark and soulless nature. The vast expansion and range of nature overwhelms him with the consciousness of his own insignificance, while, at the same time, nature is absolutely indifferent to his wishes and aspirations. What he makes of himself and his life has not the very slightest significance for this world of nature. All aspiration which transcends his natural instinct of self-preservation must appear to be mere folly. ”
