क्रिया

हतं ज्ञानं क्रियाशून्यं हता चाज्ञानिनः क्रिया ।

धावन्नप्यन्धको नष्टः पश्यन्नपि च पङ्गुकः ॥

Knowledge is lost when not acted up on. Action without knowledge is meaningless. Even if a blind man can run fast, it will only lead to his loss. Even if a cripple can see, it is of no use.