Philosophy seeks to explain everything through human reason alone. There are three main approaches to ethics in philosophy: teleological ethics judges actions based on their results; deontological ethics judges actions based on their inherent goodness; and virtue ethics judges character not actions. Additionally, there are two main theories of ethics: absolutism holds that some things are objectively right or wrong regardless of culture; relativism holds that morality is relative to culture and time period. Relativism can justify bad actions while absolutism can lead to intolerance.