EN
The article deals with topics of personal mastery and the choice of professional career. The latter is considered here not only in terms of work results, but also as the effect of knowing oneself - the ultimate outcome of prior actions (previous acquiring of qualifications) or the process of accumulating experience during professional activity in defined organizations, which makes it possible to define all the acts of professionally active individuals as a professional career. Thus, a career makes reference to the course of a person's professional life and signifies his or her employment history from the moment of selection and commencement of work up to the retirement.