Upton Sinclair,
King Coal — Book IV Chapter 10
(1917)
“ But it was when Hal's doubts attacked his brother's week-day religion--the religion of the profit-system--that the controversy between them had become deadly. At first Hal had known nothing about practical affairs, and it had been Edward's duty to answer his questions. The prosperity of the country had been built up by strong men; and these men had enemies--evil-minded persons, animated by jealousy and other base passions, seeking to tear down the mighty structure. ”
