The truman doctrine offered aid to any country threatened by communism. SO any government that was liable to turn to communism the truman doctrine aided those countries so that those countries might instead turn to democracy.
I think of Ancient Greece and how they developed the sense that every citizen should have the right to speak and say his opinion freely. Democracy gives people the ability to speak for themselves and make society better.
Ecology is the study between humans and their physical environments
for one thing they didn't teach the slaves to read or write so they would be unintellegent and they would not know of what they could be. they taught them that they are meant to serve