From these circumstances we may gather _how lately_ the more acute logical thinking, the strict discrimination of cause and effect has been developed, when our reasoning and understanding faculties _still_ involuntarily hark back to those primitive forms of deduction, and when we pass about half our life in this condition. The poet, too, and the artist assign causes for their moods and conditions which are by no means the true ones; in this they recall an older humanity and can assist us to the understanding of it. 14. CO-ECHOING.--All _stronger_ moods bring with them a co-echoing of kindred sensations and moods, they grub up the memory, so to speak. Along with them something within us remembers and becomes conscious of similar conditions and their origin. Thus there are formed quick habitual connections of feelings and thoughts, which eventually, when they follow each other with lightning speed, are no longer felt as complexes but as _unities._ In this sense one speaks of the moral feeling, of the religious feeling, as if they were absolute unities: in reality they are streams with a hundred sources and tributaries. Here also, as so often happens, the unity of the word is no security for the unity of the thing. 15. NO INTERNAL AND EXTERNAL IN THE WORLD.--As Democritus transferred the concepts "above" and "below" to endless space where they have no sense, so philosophers in general have transferred the concepts "Internal" and "External" to the essence and appearance of the world; they think that with deep feelings one can penetrate deeply into the internal and approach the heart of Nature. But these feelings are only deep in so far as along with them, barely noticeable, certain complicated groups of thoughts, which we call deep, are regularly excited; a feeling is deep because we think that the accompanying thought is deep. But the "deep" thought can nevertheless be very far from the truth, as, for instance, every metaphysical one; if one take away from the deep feeling the commingled elements of thought, then the _strong_ feeling remains, and this guarantees nothing for knowledge but itself, just as strong faith proves only its strength and not the truth of what is believed in. 16.