Samuel Nelson, Chicago v. Sheldon — Opinion of the Court
“ In cases where the language used by the parties to the contract is indefinite or ambiguous, and, hence, of doubtful construction, the practical interpretation by the parties themselves is entitled to great, if not controlling, influence. The interest of each, generally, leads him to a construction most favorable to himself, and when the difference has become serious, and beyond amicable adjustment, it can be settled only by the arbitrament of the law. ”
