According to protagoras, the most practical course for most of us "involves behaving in a conventional way."
Protagoras is best known for his proclamation: "Man is the measure of all things." He prevented the presence from claiming target truth and qualities, supplanted reality with appearance, and diminished truth to a matter of person's translation and point of view (perspectivism). Truth turned out to be in this way in respect to a gathering of individuals and people (relativism).