Reason Quotes - Page 60
C. S. Lewis (1984). “The Business of Heaven: Daily Readings from C. S. Lewis”, p.76, Houghton Mifflin Harcourt
"A Year with Swollen Appendices". Book by Brian Eno, 1996.
Benjamin Franklin (2004). “Poor Richard's Almanack”, p.41, Barnes & Noble Publishing
Ayn Rand (1988). “The Ayn Rand Lexicon: Objectivism from A to Z”, p.415, Penguin
Ayn Rand (1988). “The Ayn Rand Lexicon: Objectivism from A to Z”, p.414, Penguin
Sir Arthur Keith (1947). “Evolution and Ethics”