pustakasthā tu yā vidyā para-hasta-gataṁ dhanam
pustakasthā tu yā vidyā para-hasta-gataṁ dhanam |
kārya-kāle samutpanne na sā vidyā na tad-dhanam ||
(Cāṇakhya-nīti-darpaṇa: 16.20)
“Knowledge situated in a book is not knowledge, and wealth held in the hand of another is not wealth, when the time of need arises.”