If we want to talk about freedom, we must mean freedom for others as well as ourselves, and we must mean freedom for everyone inside our frontiers as well as outside. ↗
In particular, the efforts to reestablish peace after the World War have been directed toward the formation of states and the regulation of their frontiers according to a consciously national program. ↗
The frontiers of knowledge in the various fields of our subject are expanding at such a rate that, work as hard as one can, one finds oneself further and further away from an understanding of the whole. ↗