“The major enemy of poker players is their rationalizations for their failures to think…. Many poor players evade thinking by letting their minds sink into irrational fogs. Their belief in luck short-circuits their minds by excusing them from their responsibility to think. Belief in luck is a great mystical rationalization for the refusal to think.”
Wallace, Frank R. Poker: A Guaranteed Income for Life by Using the Advanced Concepts of Poker. Quoted in A Friendly Game of Poker by Ira Glass and Jake Austen, Chicago Review Press, 2003, page 210
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Frank R. Wallace 5
Philosopher, author, entrepreneur 1932–2006Related quotes
Source: "Games with Incomplete Information," 1997, p. 136

“A wise player ought to accept his throws and score them, not bewail his luck.”
Fragment 947.
Phædra
Source: Pearson, A.C. (1917). The Fragments of Sophocles (with additional notes from the papers of Sir R.C. Jebb and W.G. Headlam). Vol. 3. 3 vols. Cambridge: Cambridge University Press, 1917. Retrieved on 2017-01-06 from https://archive.org/details/fragmentseditedw03sophuoft.

“The worst cynicism: a belief in luck.”
Do What You Will (1970), pt. 2, ch. 15

“Wisdom lies in thinking. The spear-head of thinking is rationalism”
Quoted in Collected works of Thanthai Periyar E.V. Ramasami [sic http://books.google.co.in/books?id=edx4AAAAIAAJ, Volumes 1-11], p. 49.
Rationalism

Source: Autobiography of Mark Twain, Volume 1 (2010), p. 380

On the Zeitnot problem.
Source: Chess Life, Vol. 16-18, 1961. p. 113.