Thus, at one sweep, the whole field of instruction south of the Potomac was shut off; it was overshadowed by the cotton planters, from whom one could learn nothing but bad temper, bad manners, poker, and treason.

因此，一扫之下，波托马克河以南的整个教学场所都被关闭了；棉花种植园主使它黯然失色，从他们身上只能学到坏脾气、没礼貌、玩扑克牌和叛国罪。