中国大学MOOC: It was the Greek philosopher Aristotle who proposed the concept of “the citizen of the world”.
                    举一反三
- Aristotle, the Greek philosopher, had a theory that the heart was a blood-cooling mechanism.
 - Aristotle was an ancient Greek _________. A: philosopher B: artist C: scientist D: educator
 - Who proposed the concept of social edifice?
 - 中国大学MOOC: Aristotle is a student of Plato and a famous ancient Greek philosopher.
 - Which of the following philosophies can be traced back to the ancient Greek philosopher Aristotle? A: Socialism B: Individualism C: Collectivism D: Anarchism
 
