King see by means of smell, Brahmanas see by means of the Vedas, kings see by means of scouts and other people through eyes.
गन्धेन गावः पश्यन्ति वेदैः पश्यन्ति ब्राह्मणाः। चारैः पश्यन्ति राजानश्चक्षुर्ष्यामितरे जनाः॥