A man's reach must exceed his grasp or what's a metaphor?

— Marshall McLuhan Understanding Media (1964)

Notes from Wikiquote

Ah, but a man's reach should exceed his grasp, Or what's a heaven for?

Laws of Media: The New Science (with Eric McLuhan) (1988)

Laws of Media: The New Science (with Eric McLuhan) (1988)

Laws of Media: The New Science (with Eric McLuhan) (1988)

The Gutenberg Galaxy (1962)

Quote text and notes from Wikiquote: Marshall McLuhan (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.