The study contains the conditions of the personal development of the teacher, as follows: the teacher must know and accept himself as he is; the teacher needs in-depth theoretical training regarding the knowledge of the biopsychophysical particularities of age, the stages and crises of age, the possibilities and the modalities of the harmonious/multilateral development throughout the life; the teacher must have advanced self-management; the teacher must maintain a healthy lifestyle; the teacher must be the holder and maker of the moral-spiritual values. At the same time, the study analyzes the principles of the teacher‘s personal development in accordance with the main aspects of human life: physical, mental, moral, spiritual, and also offers some psychological and pedagogical strategies for updating and optimizing the process of personal development.