Without troublesome work, no one can have any concrete, full idea of what pure mathematical research is like or of the profusion of insights that can be obtained from it.

To begin with, we put the proposition: pure phenomenology is the science of pure consciousness.

What is thematically posited is only what is given, by pure reflection, with all its immanent essential moments absolutely as it is given to pure reflection.

Pure phenomenology claims to be the science of pure phenomena. This concept of the phenomenon, which was developed under various names as early as the eighteenth century without being clarified, is what we shall have to deal with first of all.

In a few decades of reconstruction, even the mathematical natural sciences, the ancient archetypes of theoretical perfection, have changed habit completely!

The ideal of a pure phenomenology will be perfected only by answering this question; pure phenomenology is to be separated sharply from psychology at large and, specifically, from the descriptive psychology of the phenomena of consciousness.