Objecting to "direct democracy" and the sophists, _____ wrote The Clouds.

People lived in _____.

Athens became the center of _____ because of it was a prominent seaport.

Athens became the center of _____ promoting the arts, plays, painting, music and sculpture.

A standard or criterion to appeal to when deciding what to believe is a _____.

One of the most successful and influential sophist was _____. 

There is a justice beyond conventional justice; a natural justice coming from divine logos. "You can't step in the same river twice," said _____.

_____ means excellence and virtue. 

Nature, the characteristics of things in general, independent of what human beings impose in it; not up to us to decide and the root of "physics" is _____.

Itinerant (traveling) teachers, who taught rhetoric and charged a fee, were _____. 

Custom or convention, what human beings impose is called ____.

Having the principles and practice of persuasive speaking; being able to present your case, marshal your arguments, appeal to the feelings of the audience and can argue both sides is _____.