योजनान्न परं व्रजेत्

शनैर्विद्यां शनैरर्नाथारोहेत्पर्वतं शनैः।

शनैरध्वस्तु वर्तेत योजनान्न परं व्रजेत्॥

नारदपुराणे

śanairvidyāṁ śanairarthānārohetparvataṁ śanaiḥ|

śanairadhvastu varteta yojanānna paraṁ vrajet||

nāradapurāṇe

Education should happen slowly and methodically. Wealth should get accumulated slowly and justly. Mountains should be climbed with slow care. Journeys should never be undertaken with too much speed or haste. And the distance covered at a time should be limited to a yojana..(about 8 miles)