Shiva Purana
किंचित्कर्तृत्त्त्वहेतुस्स्यात्किंचित्तत्त्वैकसाधनम् ॥ सा तु विद्या भवेद्रागो विषयेष्वनुरंजकः॥ ८१ ॥
Something may be the cause of the doer and something may be the sole means of the essence. That knowledge should be passion for sense gratification.
english translation
kiMcitkartRtttvahetussyAtkiMcittattvaikasAdhanam ॥ sA tu vidyA bhavedrAgo viSayeSvanuraMjakaH॥ 81 ॥
hk transliteration by Sanscript