A whole nation may be wiser than any one man in it; or may be animated by some common opinion or feeling which could not equally have affected the mind of a single person, or may have been inspired by a leader of genius to perform acts more than human.
 Plato, The Republic. copy citation

add
Author Plato
Source The Republic
Topic genius opinion
Date
Language English
Reference
Note Translated by Benjamin Jowett
Weblink http://www.gutenberg.org/files/1497/1497-h/1497-h.htm

Context

“whence arises the often discussed question, 'Can a nation, like an individual, have a conscience?' We hesitate to say that the characters of nations are nothing more than the sum of the characters of the individuals who compose them; because there may be tendencies in individuals which react upon one another. A whole nation may be wiser than any one man in it; or may be animated by some common opinion or feeling which could not equally have affected the mind of a single person, or may have been inspired by a leader of genius to perform acts more than human. Plato does not appear to have analysed the complications which arise out of the collective action of mankind. Neither is he capable of seeing that analogies, though specious as arguments, may often have no foundation in fact, or of distinguishing between what is intelligible or vividly present to the mind, and what is true.” source