This doctrine originates from the Egyptian priests. It was they who were among the first who began to compare the qualities of a person’s character depending on the numbers. Pythagoras took this knowledge of numbers as a basis and applied a mathematical aspect to them, based on the harmony of the square.

In this application, the following sections:
1. Psychomatrix of human character
2. Compatibility of men and women in the Pythagorean Square
3. The number and characters of the name
4. Life number