to your biological neighbor yet unborn. He can build his own nurture. We alone can endow him with his nature. Jesus proposed that he - the unborn - also might have life more abundantly. And the abundance or barrenness of his life, the biologist has found, is absolutely in our hands. Not environment, but heredity alone will insure him the life abundant. We can do a little - we can do a great deal for his environment, but we can absolutely determine his heredity. We can bequeath him an immense social heritage, but the biological character we bequeath to him will determine what he will do with it. And his biological character - his heredity - will determine four-fifths of his happiness. If Jesus had been among us, he would have been president of the first Eugenics Congress. Interpreting the spiritual significance of Weissman's microscope, Darwin's experiments, and Gregor Mendel's peas, he would have cried: "A new commandment I give unto you - the biological golden rule, the completed golden rule. Do unto both born and the unborn as you would have both the born and the unborn do unto you." This is the biolgist's conception of the brotherhood of man. This is the real golden rule. This, and this only, is the final reconciliation of science and the Bible. Science came not to destroy the Bible, but to fulfill it. It is the only thing that can fulfill it. Eugenics, which is simply conscious, intelligent organic evolution, furnishes the final program for the completed christianization of mankind.
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The second commandment of biology is the duty of scientific research.
Science alone has made true morality possible. You have read the injunction, "Seek ye after God, if haply ye might find Him." When some unknown genius of the past mixed nine parts of copper with one part of tin and made bronze, he not only lifted mankind from the Stone to the Metal Age, but he began a new era
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