"It starts with curiosity," he says. "With amazement at beauty - with awe." He believes that just as man's first curiosity about his place in the universe may have been aroused by the spectacle of a setting sun or an insect's progress, so may a child's awareness of what we call science - microbiology, chemistry and the rest - be triggered by the riotous colors of riboflavin, or the weird dance of the conjugating protozoa seen through a microscope.
"For that is the stuff of science, is it not?" he says happily. "Life. Action. Reality. And it is beautiful!"