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

It just is nothing foreign to consciousness at all that could present itself to consciousness through the mediation of phenomena different from the liking itself; to like is intrinsically to be conscious.

Natural objects, for example, must be experienced before any theorizing about them can occur.

In all the areas within which the spiritual life of humanity is at work, the historical epoch wherein fate has placed us is an epoch of stupendous happenings.

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.

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.

All perception is a gamble.