na hy ekatrāvisaṃvādamātropalambhāt sarvatra tathābhāvaniyamo yukto vyabhicārasya sambhāvyamānatvād anyathāvyabhicārilakṣaṇaṃ syāt
For the mere observation that [a statement] is not contradicted in one case does not logically establish a universal rule, since deviation is always possible.