The trip I made to Angola to study the prehistoric contents of the gravel beds as a means of deciding the age of the deposits and their economic potential was the first time prehistory had ever been used for such a purpose. ↗
Men do not understand books until they have a certain amount of life, or at any rate no man understands a deep book, until he has seen and lived at least part of its contents. ↗
If philosophy is practice, a demand to know the manner in which its history is to be studied is entailed: a theoretical attitude toward it becomes real only in the living appropriation of its contents from the texts. ↗
The contents of the massive banks behind these successive revetments makes it quite clear that the material was derived from the incorporation of earlier occupation levels. ↗