🍎 Document the nature of things, This page shows the principles, rules, laws, logic, behind-the-scenes, science, systems, oddities, and safety-related things. There may be some formal sciences (e.g., mathematics), which study abstract concepts; natural sciences (e.g., biology, physics, medicine), which study nature in its broadest sense; and social sciences (e.g., economics, psychology, sociology), which study the individual and society.