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. ↗
The words spoken by the leader of the free world can expand the frontiers of freedom or shrink them. When Ronald Reagan called on Gorbachev to "tear down this wall," a surge of confidence rose that would ultimately breach the bounds of the evil empire. ↗
