Democritus says, "But we know nothing really; for truth lies deep down".
The question was put to him, what hope is; and his answer was, "The dream of a waking man."
As a matter of self-preservation, a man needs good friends or ardent enemies, for the former instruct him and the latter take him to task.
Dogs and philosophers do the greatest good and get the fewest rewards.
Most men are within a finger's breadth of being mad.
He has the most who is most content with the least.