From various causes. I remember one man who, in six years, beginning
life at the _very beginning_, saved enough to retire upon an
independence for the rest of his life. Did he _chalk double_? I answer
not. But students should look to these things. At St. John's College,
Cambridge, the tutors have adopted an excellent plan by which, with
ordinary diligence, cheats may be detected: they oblige the tradesmen
to furnish them with duplicates of their bills against the students,
one of which is handed to the latter, and any error pointed out, they
will be _forced_ to rectify.