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The Three Laws may refer to:

Science

• Kepler's laws of planetary motion, three scientific laws describing the motion of planets around the Sun
• Newton's laws of motion, three physical laws that, together, laid the foundation for classical mechanics
• The laws of thermodynamics, originally three physical laws describing thermodynamic systems, though a fourth one was later formulated and is now counted as the zeroth law of thermodynamics

Other

• Clarke's three laws, three adages from British science-fiction writer Arthur C. Clarke's extensive writings about the future
• Three Laws of Robotics, a set of rules devised by the science fiction author Isaac Asimov

• Disambiguation pages