ABSTRACT
This chapter discusses the second part of Husserl's lectures on First Philosophy which he had given in the winter semester of 1923–24. It presents long-cherished thoughts which are brought together for didactic purposes, but also has the character of a first draft which is worked out from hour to hour and conveyed in lectures. Husserl continually points to the exemplary Cartesian quest for the fundamentum absolutum et inconcussum which is to be found in the indubitable evidence of the ego cogito. It is the idea of a first science which issues from a firm, indubitable, and, in this sense, apodictic, evidence, and whose every additional step is built upon it in a similar manner and is derived from and justified by it.
