This is the first translation into English of two texts by the early phenomenologist Hedwig Conrad-Martius, who was one of Husserl’s first students, an important part of the Göttingen Phenomenology Circle and mentor to Edith Stein, Jean Héring, and other early phenomenologists. The present volume provides the full German and English texts of two lectures, originally published under the title "Bios und Psyche" in 1949, which discuss the nature of life as it is expressed differently in plants, animals, and humans. Conrad-Martius is in explicitly conversation with the scientific research of her time period, providing a deeper philosophical grounding for its ontological claims. The second text was originally published as "Die Geistseele des Menschen" in 1960 and presents her mature view of the human soul and spirit, including their relationship to each other and to the human self.