Verily, an object cannot be performed without the application of means. Fishermen catch fish by means of nets made of strings.
न हि खल्वनुपायेन कश्चिदर्थोऽभिसिद्ध्यति। सूत्रजालैर्यथा मत्स्यान् बनन्ति जलजीविनः॥