I see the situation as follows. There are various philosophical views, mutually incompatible, which cannot be dismissed or simply rejected. Philosophy's output is the basketful of these admissible views, all together. One delimiting strategy would be to modify and shave these views, capturing what is true in each, to make them compatible parts of one new view. This book puts forward its explanations in a very tentative spirit not only do I not ask you to believe that they are correct, I do not think it important for me to believe them correct, either. Still I do believe, and hope you will find it so, that these proposed explanations are illuminating and worth considering, that they are worth surpassing also that the process of seeking and elaborating explanations, being open to new possibilities, the new wonderings and wanderings, the free explanation, is itself a delight.