“You're entitled to say, if you're so smart, why don't you tell me what that dark matter is? And I'll have to confess I don't know.” IfsKnowsMatterDarkSmartEntitledDark Matter Author:Jim Peebles
“I think I'd be depressed if everything were nearly all known, but I don't feel any danger of that happening.” IfsThinkingFeelsKnownDangerHappenings Author:Jim Peebles
