yourself means knowing, first, what it is to be a man; secondly,
knowing what it is to be the kind of man you are; & thirdly, knowing
what it is to be the man YOU are and nobody else is. Knowing yourself
means knowing what you can do; & since nobody knows what he can do
until he tries, the only clue to what man can do is what man has done.
The value of history then, is that it teaches us what man has done &
thus what man is." R.G.Collingwood 1946
"To know and not to know, to be conscious of complete truthfulness while telling carefully constructed lies, to hold simultaneously two opinions which cancelled out, knowing them to be contradictory and believing in both to use logic against logic..." George Orwell 1984 "Double think"