Checker Quotes (2 quotes)
Mathematics is like checkers in being suitable for the young, not too difficult, amusing, and without peril to the state.
— Plato
As given in Scripta Mathematica: A Quarterly Journal Devoted to the Philosophy, History, and Expository Treatment of Mathematics (1950), 17, 185.
World Game finds that 60 percent of all the jobs in the U.S.A. are not producing any real wealth—i.e., real life support. They are in fear-underwriting industries or are checking-on-other-checkers, etc.
In Critical Path (1982), 223. - Google Books Result
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
(1987) -- 
