आचार्यात्पादमादत्ते पादं शिष्यः स्वमेधया ।
कालेन पादमादत्ते पादं सब्रह्मचारिभिः ॥
ācāryāt pādam ādatte pādaṁ śiṣyaḥ svamedhayā |
kālena pādam ādatte pādaṁ sabrahmacāribhiḥ ||
(Cited in a commentary to Mahābhārata: Udyoga-parva, 44.16)
“A student acquires one-fourth from the ācārya, one-fourth by by his own intellect, one-fourth in time, and one-fourth from fellow students.”