Śīla refers to overall principles of ethical behavior. There are several levels of sīla, which correspond to "basic morality" (five <answer>precepts</answer>), "basic morality with asceticism" (eight <answer>precepts</answer>), "novice monkhood" (ten <answer>precepts</answer>) and "monkhood" (Vinaya or Patimokkha). Lay people generally undertake to live by the five <answer>precepts</answer>, which are common to all Buddhist schools. If they wish, they can choose to undertake the eight <answer>precepts</answer>, which add basic asceticism.
Lay people tend to live by the five what?
precepts