Man, Real and Ideal: Observations and Reflections on Man's Nature, Development, and Destiny

adaptations become behavior beliefs biologist biology body and mind causes Charles Darwin chromosomes conscious cooperation course cytoplasm Darwin death desire differentiation earth elimination embryo emotions ethics evolution existence experience fact factors faith feelings freedom fundamental genes germ cells hate heredity higher animals Holism Hominidae Homo sapiens idealist ideals immortality increasing individual inherited intellectual intuitions League of Nations less living things man's mankind means mechanism mechanistic ment mental methods modern moral muscles natural selection nerve objective science ontogeny organism origin peace persistence persons philosophy physical possible probably progress protoplasm protozoa psychic races reality reflexes regarded religion religious responses satisfactions scientific evidence scientists Sir Charles Sherrington social society spirit stimuli structures and functions subjective phenomena substances supernatural T. H. Huxley teleological teleology theory thought tion trial and error tropisms truth United universe