The Lost World (Jurassic Park, #2)

by Michael Crichton

And for Levine and Malcolm, the difference in their approach had surfaced early, back in the Santa Fe days. Both men were interested in extinction, but Malcolm approached the subject broadly, from a purely mathematical standpoint. His detachment, his inexorable formulas, had fascinated Levine, and the two men began an informal exchange over frequent lunches: Levine taught Malcolm paleontology; Malcolm taught Levine nonlinear mathematics. They began to draw some tentative conclusions which both found exciting. But they also began to disagree. More than once they were asked to leave the restaurant; then they would go out into the heat of Guadelupe Street, and walk back toward the river, still shouting at each other, while approaching tourists hurried to the other side of the street.