2. Family ties remain. The relation of husband and wife, of parents and children, and the duties of their several positions in the home have not changed. The family remains the social unit as it has been in all ages. Sociology, the science of social and political organization, is a permanent science. It does not change with the shifting temporal conditions of the people. Those things which made for the general welfare of ages ago are for the public weal now, and those things that endangered the state then are to be avoided now. 3. The moral law remains unchanged and unchangeable, with all the brilliant present there is no amendment to the ten commandments. The ethical nature remains and the voice of conscience, approving the same right and condemning the same wrong, is identical with the voice of conscience in the time of Moses. 4. The laws of nature have not changed. The relation between a cause and its sequence remains. Like causes produce like effects. No living thing has changed its nature. A lion now is of the same nature that it was in the time of Samson. So with every savage beast that roams the jungle. Even the domesticated animals, with all the effort and skill of intelligent man, have only been smoothed or speeded a little. The horse, cow, sheep, or dog have held their old forms and dispositions. Seed time and harvest come and go and we are dependent for the same shower and sunshine that gave Adam his first harvest. We know some things they did not know and we have bettered our tools, but the natural world has shown no signs of change. 5. The relation of things to each other have not changed. Plants must have soil to grow in, animals must have vegetation to feed upon. Fish must have water. And so with the thousands of relations of climate, elements, soils, plants, animals, fishes, birds and insects, they are the identical relations sustained ages and ages ago. 6. The nature of money has not changed. Its material and form and denominations have been modified but the functions of money as a storage of values and as a measure of values and as a medium of exchange remain the same. Our gold and silver and paper money may be more convenient and more exact, but its functions are just the same as the Indians' wampum. The law of supply and demand and the equity in commercial transactions, great or small, are unchanged. Money could always be used to make or gather more money in business. It is no more true now than in the times of David or Nehemiah. If this had not then been possible; if there had not been tempting opportunities, there would have been no sin of usury for them to reprove. Man's changed conditions are but trifling and incidental, relating to himself. They do not affect a single natural or moral or economic law. The changed conditions, which are urged as a reason that the prohibition of usury is no longer binding, are only the conditions brought about by the violation of that law.