Plato on Humanity Posted on Dec 29, 2020 by Quotes Team. Filed under Humanity, Philosophy, Wisdom “No human thing is of serious importance.”Plato Greek author & philosopher in Athens (427 BC – 347 BC) Related Posts:Plato on Humanity "There are three classes of men; lovers…Plato on Light "We can easily forgive a child who…Plato on Poetry "Poetry is nearer to vital truth than…Plato on War "Only the dead have seen the end…Aeschylus on Wisdom "It is a profitable thing, if one…