James madison concept about if mens were Angels

this is what it says "If men were angels, no government would be necessary. If angels were to govern men, neither external nor internal controls on government would be necessary. A dependence on the people is, no doubt, the primary control on the government; but experience has taught mankind the necessity of auxiliary precautions."

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories