The same proviso that holds generally for the concepts prefacing the philosophy – namely, that they are determinations drawn from and subsequent to the survey of the whole – also holds for this as well as other determinations contained in this preliminary conception.

It can indeed be said that logic is the science of thinking, of its determinations and laws. However, thinking as such constitutes only the universal determinateness or the element in which the idea exists qua logical. The idea is thinking not insofar as the latter is formal, but insofar as it is the self-developing totality of its distinctive determinations and laws, which it gives itself and does not already have and find within itself.

Logic is the most difficult science in that it has to do not with intuitions – and not even with abstract sensory representations as in geometry – but with pure abstractions. It requires a certain strength and versatility to retreat into pure thought, to hold on to it steadfastly and to move about in it. On the other hand, logic could be considered the easiest science, because its content is nothing but one's own thinking and its familiar determinations, and these are at once the simplest and the elementary sort of determinations. They are also what is most familiar, namely being, nothing, etc., determinateness, magnitude, etc., being-in-itself, being-for-itself, one, many, etc. This familiarity with them, however, makes the study of logic even harder. On the one hand, it is readily held to be not worth the effort to occupy oneself with such familiar things and, on the other, the point is to become familiar with them in a way that is entirely different from, indeed even opposed to, the way one is already.

The usefulness of logic concerns the relationship to the subject, namely, the extent to which the subject [thereby] provides himself with a certain education for other purposes. His education through studying logic consists in acquiring practice in thinking, since this science is a thinking of thinking, and in getting thoughts into his head [precisely] as thoughts.