Really, the fundamental, ultimate mystery -- the only thing you need to know to understand the deepest metaphysical secrets -- is this: that for every outside there is an inside and for every inside there is an outside, and although they are different, they go together.
We have all our private terrors, our particular shadows, our secret fears. We are afraid in a fear which we cannot face, which none understands, and our hearts are torn from us, our brains unskinned like the layers of an onion, ourselves the last.
Science ... looks skeptically at all claims to knowledge, old and new. It teaches not blind obedience to those in authority but to vigorous debate, and in many respects that's the secret of its success.
It's hard to have that debate around secret programs authorized by secret legal opinions issued by a secret court. Actually, it's impossible to have that debate.