स्वकार्यपरकार्येषु यस्य बुद्धिः स्थिरा भवेत्

स्वकार्यपरकार्येषु यस्य बुद्धिः स्थिरा भवेत्।

तस्य चैवेह पाण्डित्यं शेषाः पुस्तकवाचकाः॥

सुभाषितपद्यरत्नकर् ३

svakāryaparakāryeṣu yasya buddhiḥ sthirā bhavet|

tasya caiveha pāṇḍityaṁ śeṣāḥ pustakavācakāḥ||

subhāṣitapadyaratnakar 3

A really learned person is one whose thoughts, ideas and opinions about matters pertaining to himself and others too are steady and clear. Others showing erudition are mere book-worms