Deontological ethics is a theory that suggests that behavior and decisions should be based mostly on an individual's duties and the rights of other people. A main tenet of deontological ethics is that people should live by pre-existing moral obligations. People should govern their behavior with permanent moral principles that cannot be altered simply by changing circumstances. A deontological viewpoint suggests that the "end does not justify the means." Deontological morality is considered a "rule-based" sense of ethics that doesn't rely on a inborn sense of morality or ethics.