Attributed in "Mathematics as grammar: 'Grammar' in Wittgenstein's philosophy of mathematics during the Middle Period" by A. A. B. Aspeitia, Indiana University, (p. 25), 2000.
"Sam Allardyce, the man: England's new boss from childhood to heart scare and being football's Mr Fix It" by Michael Gadd, www.mirror.co.uk. July 21, 2016.
Bruce H. Lipton (2015). “The Biology of Belief 10th Anniversary Edition: Unleashing the Power of Consciousness, Matter & Miracles”, p.12, Hay House, Inc