Zen Master Dogen said, "You should maintain the precepts. Still, it is wrong to insist upon them as essential, establish them as a practice, and expect to be able to gain the Way by observing them. We follow them just because they are the activities of Zen monks and the lifestyle of the Buddha’s children. Although keeping them is good, we should not take them as the primary practice. I don’t mean to say, however, that you should break the precepts and become self-indulgent. Clinging to such an attitude is an evil view and not that of a Buddhist practitioner. We follow the precepts or regulations simply because they form the standards for a Buddhist and are the tradition of Zen monasteries."
"For true attainment of the Way, devoting all effort to zazen alone has been transmitted among the buddhas and patriarchs. When we sit zazen, what precept is not observed, what merit is not actualized? The ways of practice carried on by the ancient masters have a profound meaning. Without holding on to personal preferences, we should go along with the assembly and practice in accordance with those ways."