Nature makes boys and girls lovely to look upon so they can be tolerated until they acquire some sense.

Phelps’s line is a wry, affectionate joke about the social and emotional labor of raising children. It suggests that childhood charm—cuteness, beauty, and endearing mannerisms—functions as a kind of evolutionary or providential “compensation,” helping adults remain patient through the years when children lack judgment, self-control, or practical sense. The humor depends on a mild exaggeration: children are not literally “tolerated,” but their loveliness softens frustration and invites care. Beneath the quip is an implicit view of maturity as the gradual acquisition of reason and responsibility, and of adults as needing emotional incentives to sustain nurture until that maturity arrives.