There’s no experience like on-the-job training.

Azaria’s remark underscores the idea that certain skills—especially performance skills like timing, listening, improvisation, and adapting to collaborators—are learned most effectively in real working conditions rather than through purely theoretical study. “On-the-job training” implies learning by doing: making mistakes, receiving immediate feedback, and gradually internalizing professional standards. Coming from an actor and voice performer known for developing characters in live production environments, the line also suggests humility about craft: expertise is accumulated through repeated practice under pressure, not simply through preparation. The quote functions as a defense of experiential learning and an endorsement of apprenticeship-like growth in creative work.