It is the duty of the kṣatriya to see that everyone is executing his proper professional or occupational duty. We have discussed this point yesterday, sva-dharmam api cāvekṣya (BG 2.31). Sva-dharma. This is very important. At the present moment there is no sva-dharma. Therefore according to Vedic injunctions, dharmeṇa hīna paśubhiḥ samānāḥ (Hitopadeśa 25): one who is not executing his own religious principle, he is no better than the animals.
So who will see that everyone engaged in discharging his occupational duty? Sva-dharmam means occupational duty. It is the duty of the king, government. In the beginning it is the duty of the father, of the teacher, to train children to the principles of sva-dharma. A brāhmaṇa, it is the duty of the brāhmaṇa to see that his son is being properly trained up as a brāhmaṇa: satyaṁ śamo damas titikṣā ārjavaṁ brahma-karma svabhāva-jam (BG 18.42). Everything is there. The brāhmaṇas should be taught how to become truthful, first of all. A brāhmaṇa will never speak lie, at any cost. It is stated that even if his enemy inquires something confidential from him, he'll say: "Yes, this is my position." This is truthfulness. He'll not even, I mean to say, guile against his enemy. He should be truthful. Even kṣatriyas, they are also truthful men. Truthfulness is so valuable. That makes one powerful brāhmaṇa. Satyam.