Huygens: The Rationale of Games of Chance

"Even though in games moderated purely by chance, events tend to be uncertain, the odds to win or lose can be determined with certainty. Thus, inasmuch it is uncertain to verify for true or false if someone asserts that will get a six upon the first throw of a die, it nevertheless does submit to calculations and assessment how much likely it is for him to loose or to win. "

Huygens

References

De Ratiociniis in Ludo Aleae (page 521ff)