Arhatas are called hinayana, a little boat in which one man can row and go to the other side. Of course he reaches the other shore. And bodhisattvas he has called the mahayana; it is a great ship in which thousands of people can move to the other shore. The other shore is the same, but the bodhisattva helps many. The arhata is not articulate; he is a simple, nice, utterly humble person, but will not utter a single word of what he has attained. It is too much for him to say anything. He is completely contented, why should he speak?