Question: what are the four main tenets of ethical formalism?
Answer: The Principle of Respect for autonomy. Autonomy is Latin for "self-rule" We have an obligation to respect the autonomy of other persons, which is to respect the decisions made by other people concerning their own lives. ... 
The Principle of Beneficence. ... 
The Principle of nonmaleficence. ... 
The Principle of justice.