Sayings of Socrates 35

We should not then think so much of what the majority will say about us, but what he will say who understands justice and injustice, the one, that is, and the truth itself. 

So that, in the first place, you were wrong to believe that we should care for the opinion of the many about what is just, beautiful, good, and their opposites. 

—Plato, Crito 48a