Maximum force and minimum distance: physics in limit statements

Special relativity, quantum theory and general relativity are summarized in one fundamental limit statement each. Each statement is a simple limit statement for a physical observable. The three statements fully contain the three theories and are fully equivalent to their standard formulations. In particular, the statement for general relativity affirms the existence of a maximum force in nature. Taken together, the three fundamental limit statements imply a bound for every physical observable, from acceleration to size and power. The limit values differ from the usual Planck values only by numerical factors of order unity