We would be in a nasty position indeed if empirical science were the only kind of science possible.

Experience by itself is not science.

To every object there correspond an ideally closed system of truths that are true of it and, on the other hand, an ideal system of possible cognitive processes by virtue of which the object and the truths about it would be given to any cognitive subject.

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.

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.