Everyone hungers for it, but pleasure can be remarkably elusive. In this hour of To the Best of Our Knowledge, the pursuit of pleasure - and a few people who are truly happy. Also, a surfer describes the ecstasy of the perfect wave. And how a "pleasure cruise" made one writer feel awful.

SEGMENT 1

Mihaly Csikszentmihalyi teaches psychology and education at the University of Chicago. He tells Anne Strainchamps what he means by "flow" and how it is the dsecret of happiness. His book is "Finding Flow: The Psychology of Engagement with Everyday Life. Also, anthropologist Lionel Tiger tells Steve Paulson that we should search for pleasure within ourselves. Tiger's book is "The Pursuit of Pleasure."

SEGMENT 2:

Dan Duane quit his day job to go surfing. He tells Jim Fleming why and describes his best wave ever. Duane is the author of "Caught Inside: A Surfer's Year on the California Coast."

SEGMENT 3:

Writer and journalist David Foster Wallace tells Steve Paulson why he didn't have the time of his life aboard a luxurious cruise ship. The story is the title essay in his book "A Supposedly Fun Thing I'll Never Do Again."

Distribution dates:

• week of 08/17/97 - hour 3
• week of 07/19/98 - hour 3