Final answer:
Euripides' plays mainly depict the influence of human struggle against social conventions and the questioning of divine intervention, emphasizing human reasoning, psychological elements, and moral questioning as pivotal to human affairs.
Step-by-step explanation:
Judging from Euripides' plays, the greatest influence in human affairs is often depicted as the struggle of individual human beings against the inadequacies of the social order and the questioning of the gods. Euripides introduced strong psychological elements and moral questioning in his plays, suggesting that species of human motivation are intrinsic and not divinely inspired. His characters, including strong female protagonists, battle against injustices that are depicted as inherently human rather than godly in origin. In plays like Medea and Trojan Women, he sheds light on the suffering and challenges provoked by adhering to outdated social conventions and laws that deny basic human rights. This portrayal reflects a significant shift from simply justifying the actions of gods to highlighting the capacity of humans to reason and to critique the structural forces shaping their lives. Euripides' works encourage the audience to employ critical thinking and introspection concerning traditional norms, the role of the gods, and the humanism that characterizes Greek cultural achievements.