Someone asked me: the objective of maintaining the 8 precepts is to be celibate. If he is able to maintain the third precept, the other subordinate precepts such as the sixth, seventh, and eighth precepts, he does not need to maintain those. Is this tru

Someone asked me: the objective of maintaining the 8 precepts is to be celibate. If he is able to maintain the third precept, the other subordinate precepts such as the sixth, seventh, and eighth precepts, he does not need to maintain those. Is this true?