Sāṃkhya Kārikā verse 64

evaṃ tattvābhyāsāt na asmi na me na aham iti apariśeṣam | aviparyayāt viśuddhaṃ kevalam utpadyate jñānam ||

eva - indeed, truly, really; thus; so, just so, exactly sotattva - principle; thatnessabhyāsa - practice; the effort of the mind to remain in its unmodified condition of purity ; repeated or permanent exercise, discipline, use, habit, custom;na - no; not; nor, neitherasmi - I amme - myaham - I; I amiti - thus; in this manner; something that has been said or thought; having so saidapariśeṣa - not leaving a remainder, all-surrounding, all-enclosingaviparyaya - without mistake or misapprehension, without any doubtviśuddhi - special purity; complete purification, purity; rectification, removal of error or doubtkevala - alone, only, merely, solely, excluding othersutpannā - arisesjñāna - knowing; knowledge; higher knowledge