The Painful Fall of a Great Reputation — G.K. Chesterton

"Bosh," he said. "On what else is the whole world run but immediate impressions? What is more practical? My friend, the philosophy of this world may be founded on facts, its business is run on spiritual impressions and atmospheres. Why do you refuse or accept a clerk? Do you measure his skull? Do you read up his physiological state in a handbook? Do you go upon facts at all? Not a scrap. You accept a clerk who may save your business-you refuse a clerk that may rob your till, entirely upon those immediate mystical impressions under the pressure of which I pronounce, with a perfect sense of certainty and sincerity, that that man walking in that street beside us is a humbug and a villain of some kind."