谁给翻译一下,谢谢!measure the stature of great men by the yardstick

谁给翻译一下,谢谢!measure the stature of great men by the yardstick of small men;A knave thinks of others in terms of his own desires.;gauge [guess] the heart of a gentle man with one's own mean measure;He has no idea of what the princely man aspires.