Phenomenology of Spirit, Preface, paragraph 34

This movement of the pure entities constitutes the nature of the scientific endeavor in general. Looked at as the concatenation of their content, this movement is the necessity and expansion of that content into an organic whole. By this movement, too, the road by which the concept of knowledge is reached becomes itself likewise a necessary and complete becoming. This preparatory stage thus ceases to be casual philosophizing, referring to objects, relations, and thoughts of incomplete consciousness as chance may direct, or seeking to ground the true through back-and-forth argumentation [Räsonnement], through conclusions and consequences drawn from specific thoughts. Rather, through the movement of the concept, this road will encompass the complete secularity of consciousness in its necessity.