Dhammapada 19.267

He who is above good and evil, who is chaste, who with knowledge passes through the world, he indeed is called a Bhikshu.

268, 269. A man is not a Muni because he observes silence (mona, i.e. mauna), if he is foolish and ignorant; but the wise who, taking the balance, chooses the good and avoids evil, he is a Muni, and is a Muni thereby; he who in this world weighs both sides is called a Muni.