"Credo". Essay by Arthur C. Clarke (1991), later published in Arthur C. Clarke "Greetings, Carbon-Based Bipeds!: Collected Essays, 1934-1998" (p. 360), 1999.
"The world's largest hedge fund reimburses employees half the cost of $1,000 meditation lessons" by Richard Feloni, www.businessinsider.com. November 10, 2016.