राजा पश्यति कर्णाभ्यां , धिया पश्यन्ती पण्डिताः । पशुः पश्यति गन्धेन , भूते पश्यन्ती बर्बराः ।।

The administrator perceives by his ears, the learned by their intellect; an animal perceives by scent and fools by the past.