at
| the mean result will accord with the probabilities at all.
| Taking all his risks collectively, then, it cannot be certain
| that they will not fail, and his case does not differ, except
| in degree, from the one last supposed.  It is an indubitable
| result of the theory of probabilities that every gambler, if
| he continues long enough, must ultimately be ruined.  Suppose
| he tries the martingale, which some believe infallible, and
| which is, as I am informed, disallowed in the gambling-houses.
| I