The Riddle of the Universe at the Close of the Nineteenth Century |
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amphibia anatomy ancestors apes atoms belief biogenetic law body brain branch cell-soul cells cellular character chemical Christ Christian Church cnidaria comparative comparative anatomy conception connected consciousness Darwin distinguished dogma dualistic earth embryo empirical energy entirely especially eternal ether evolution fact faith famous force formation functions fundamental groups heredity higher animals highest History of Creation human idea important individual infusoria inorganic Johannes Müller Kant knowledge Lamarck law of substance layers living lower mammals matter mechanical ment mental metazoa millions modern monistic monotheism moral movement myth nineteenth century ontogeny origin ovum pantheism phenomena philosophers physical physiology placentals plants present primitive principle processes progress protists protoplasm protozoa proved psychic psychic activity psychology pure question rational reason reflex reflex action religion scientific scientists sensation sense sense-organs sexual soul spermatozoa stage structure superstition theism theory thought tion true truth ultramontane unconscious unicellular unity universe vertebrates vital