What the reader can expect: Among the natural sciences, physics is known for its particular precision. The reason for this is the role that numbers and thus mathematics play within it. The recognized importance of measurement for physics underscores this observation, as "measuring" simply means expressing an observation in numerical terms. Given this situation, one might be tempted to describe physics as the endeavor to comprehensively capture nature and the world using the concept of numbers. However, can what we call physics actually be defined in this way? While physics has a large number of formulas, i.e., (formalized) statements that operate with the concept of numbers—such as the laws of falling bodies, the ideal gas law, the Balmer formula for hydrogen, and many more—there are also physical statements in which numbers do not appear.