nanu ca yadyavikalpaṃ pratyakṣaṃ kathaṃ tena vyavahāraḥ, tathā hi idaṃ sukhasādhanam idaṃ duḥkhasyeti yadi niścinoti tadā tayoḥ prāptiparihārāya pravartate
[The opponent:] "If perception is non-conceptual, how can there be practical activity based on it? For [only] when one determines 'this is a means to pleasure' [and] 'this [leads] to pain', does one then engage in obtaining or avoiding these respectively."