Ludwig Josef Johann Wittgenstein was an Austrian philosopher and logician, a representative of analytic philosophy. Ludwig Wittgenstein is one of the most brilliant thinkers of the 20th century. Wittgenstein developed the program for the construction of the artificial ideal language. Wittgenstein understood philosophy as a critique of the language. Wittgenstein developed the doctrine of logical atomism, which is a projection of the structure of knowledge on the structure of the world.