I think it is true I mean it been a while
Art is used as a form of expression. Greek artists included the ideas of reason, moderation, balance, and harmony, because it was what they believed in. The Greeks often glorified the idea of being useful, peaceful, and living in simplicity, which would explain why their art work was influenced by it.
In a rustic tea house. im taking art history through odysseyware and i had this question yesterday or the day before and that was the answer.