This celebratory publication is an expression of deepest gratitude to Herta Nagl-Docekal. With this volume, colleagues, graduates and friends want to celebrate her collected philosophical works. Her entire life's work has been characterized by both humanitarian and humanist commitment: to seek the principles of justice in the co-existence of human beings, but that philosophy also provides the basic yardstick, to highlight distortions on recent theories. Her philosophical work is alive with the commitment to a philosophy which is compelled to seek the principles of greater justice and solidarity.