“No one, either in the nineteenth century or the twentieth, has ever built a persuasive case proving that dinosaurs as a whole were more like reptilian crocodiles than warm-blooded birds. No one has done this because it can't be done.”
The Dinosaur Heresies: A Revolutionary View of Dinosaurs (1986), Longman Scientific & Technical, p. 27
The Dinosaur Heresies (1986)
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Robert T. Bakker 30
American paleontologist 1945Related quotes

Nobel lecture (1970)
Context: Our Twentieth Century has proved to be more cruel than preceding centuries, and the first fifty years have not erased all its horrors. Our world is rent asunder by those same old cave-age emotions of greed, envy, lack of control, mutual hostility which have picked up in passing respectable pseudonyms like class struggle, racial conflict, struggle of the masses, trade-union disputes. The primeval refusal to accept a compromise has been turned into a theoretical principle and is considered the virtue of orthodoxy. It demands millions of sacrifices in ceaseless civil wars, it drums into our souls that there is no such thing as unchanging, universal concepts of goodness and justice, that they are all fluctuating and inconstant. Therefore the rule — always do what's most profitable to your party. Any professional group no sooner sees a convenient opportunity to BREAK OFF A PIECE, even if it be unearned, even if it be superfluous, than it breaks it off there and then and no matter if the whole of society comes tumbling down.
As quoted in "How Dinosaurs Loved: An Interview with Dr. Mark Norell on Dino Relations" http://motherboard.vice.com/blog/t-rexxx-how-dinosaurs-lived-loved-and-tasted-q-a-with-dr-mark-norell-american-museum-of-natural-history, Vice (March 20, 2012)
As quoted in "How Dinosaurs Loved: An Interview with Dr. Mark Norell on Dino Relations" http://motherboard.vice.com/blog/t-rexxx-how-dinosaurs-lived-loved-and-tasted-q-a-with-dr-mark-norell-american-museum-of-natural-history, Vice (March 20, 2012)

Martin Seymour-Smith Guide to Modern World Literature (London: Hodder & Stoughton, 1975) vol. 3, p. 30.
Criticism
As quoted in "How Dinosaurs Loved: An Interview with Dr. Mark Norell on Dino Relations" http://motherboard.vice.com/blog/t-rexxx-how-dinosaurs-lived-loved-and-tasted-q-a-with-dr-mark-norell-american-museum-of-natural-history, Vice (March 20, 2012)

“The nineteenth century believed in science but the twentieth century does not.”
Wars I Have Seen (1945)

The Deadliest U.S. Natural Hazard: Extreme Cold http://wattsupwiththat.com/2008/12/18/the-deadliest-us-natural-hazard-extreme-cold/ December 18, 2008.
Other

Mont Saint Michel and Chartres (1904)