<em>These two fields that defined Carnegie motivated him to write "The Gospel of Wealth" in which he explained wealthy people or people from high social classes should be philanthropists or use surplus wealth to help society. </em>
The term "trias politica" or "separation of powers" was coined by Charles-Louis de Secondat, baron de La Brède et de Montesquieu, an 18th century French social and political philosopher.
