The fact that man knows right from wrong proves his intel- lectual superiority to the other creatures;but the fact that he can do wrong proves his moral inferiority to any creature that cannot.

• 人能辨别是非，这证明他在智力上高于其它生物，但他能为非作歹也是事实，这证明人在道德上劣于一切不能为非作歹的其它生物。