Maybe a few breakfast bingers, before scarfing down the cheesecake with some milk drunk directly from the carton, might seek intellectual underpinning for their pig - out — Hey, I'm getting protein from the cheese, fiber from the crust and fruit from the topping — but realists accept that an occasional wanton act of gluttony needs no further explanation than Just because... (si.com)
Like the other works in this room, it has a strong intellectual underpinning. (whitney.org)
Beneath the various inadequacies, there was at least a genuinely interesting intellectual underpinning to what he did. (politics.co.uk)