Bhagavad-gītā 2.46
BG 2.46
Open the full passageयावानर्थ उदपाने सर्वतः सम्प्लुतोदके । तावान्सर्वेषु वेदेषु ब्राह्मणस्य विजानतः ॥४६॥
Sanskrit
yāvān artha udapāne sarvataḥ samplutodake tāvān sarveṣu vedeṣu brāhmaṇasya vijānataḥ
Translation
All purposes served by a small well can at once be served by a great reservoir of water. Similarly, all the purposes of the Vedas can be served to one who knows the purpose behind them.