- Classicism originated in Ancient Greece and valued philosophy, education, and independent thought. It influenced fields like astronomy, ethics, and politics. - During the Renaissance, interest in Greek classics was revived as many works were translated from Greek to Latin. This re-birth of classical ideas influenced humanism with its emphasis on education and the heights of human knowledge. - Enlightenment thinkers saw themselves as heirs to Greek classical thought and valued reason above religion. They believed humanity could progress through rationality, equality, and tolerance. Classical ideals came to inform theatre through concepts like the three unities and ballet through emphasis on order, balance, and symmetry.