Protagoras asserted that there are two sides to every question, exactly opposite to each other.
The great thieves lead away the little thief.
The Sun visits cesspools without being defiled.
We come into the world alone and we die alone. Why, in life, should we be any less alone?
The question was put to him, what hope is; and his answer was, "The dream of a waking man."
Democritus says, "But we know nothing really; for truth lies deep down".