David Pilbeam quotes:

Perhaps generations of students of human evolution, including myself, have been flailing about in the dark; that our data base is too sparse, too slippery, for it to be able to mold our theories. Rather the theories are more statements about us and ideology than about the past. Paleontology reveals more about how humans view themselves than it does about how humans came about, but that is heresy.

Human paleontology shares a peculiar trait with such disparate subjects as theology and extraterrestrial biology: it contains more practitioners than objects for study.

I shall discuss the broad patterns of hominoid evolution, an exercise made enjoyable by the need to integrate diverse kinds of information, and use that as a vehicle to speculate about hominoid origins, an event for which there is no recognized fossil record. Hence, an opportunity to exercise some imagination.