His works were associated with the ideas of the Graz School and he is noted for contributing to its object theory and Stephan Witasek's aesthetics.
[4] Under the tutelage of Stephan Witasek, Tadeschi was introduced to the notion of habit through the latter's idea of value beauty or Wertschönheit.
[8] One of Tedeschi's notable works was a review of Otto Weininger's Geschlecht und Charackter (1903), which – for some in Italy – became an alternative to Freudian psychoanalysis.
[2] The text, which was completed by Mariano Graziussi, included three essays that explored Witasek's conceptualization of value and beauty.
For example, he identified Otto Weininger as "the antifeminist philosopher", who was able to effectively expand the feminism theme – a topic that he said was vaguely developed in the works of his contemporaries such as Arthur Schopenhauer, Friedrich Nietzsche, and August Strindberg.