Everywhere in mathematics there is room for an endless proliferation of ideas...No limits have been set to the range and scope of the human mind. Entirely new fields of mathematics will in due time be revealed to us.... If fledglings today can fly higher and farther and more easily than those of yore, it is because they have been borne aloft by eagles.
Justin Moore & Julio Mira
The Gist of Mathematics, 1942, p. 577