Natural Barrier
a physical feature that can hinder or protect travel (mountains, deserts, swamps,seas, etc)
Philosophy
the study of the basic ideas about knowledge, truth, right and wrong, religion, and the nature and meaning of life.
Legalism
believed people were born bad and a strong leader and a strong legal system are needed to create social order
Civil Service
the permanent professional branches of a government’s administration, excluding military and judicial branches and elected politicians