Władysław Tatarkiewicz was not only a co-creator of Polish aesthetics (aside Roman Ingarden, Stanisław Ossowski and Mieczysław Wallis) but also, aside Henryk Elzenberg, a co-creator of Polish axiology. Main issues of Tatarkiewicz’s axiological development were: value and validation theory and happiness and perfection theory. His undebatable achievement in axiological discourse is justification of the need to acknowledge relationism as a middle ground position between objectivism and subjectivism and axiological pluralism as a position different from absolutism and axiological relativism. The article presents not only axiology explicite, contained in his theoretical works, but also tries to reconstruct Tatarkiewicz’s personal axiology, which guided him throughout his long life. The personal axiology of his, I tried to reconstruct based on his memoirs, interviews he gave, letters and my personal contacts with him.