Trends toward unity in mathematics

Without some unifying theory, the mathematicians would fatally tend to use divergent, incompatible languages, like the builders of the tower of Babel. Theory of categories seems to be the most characteristic unifying trend in present day Mathematics; for that reason I think it will soon have to be taught at the University level like other fundamentals, as early as linear Algebra or Topology. Mathematics is the key for the understanding of the whole Universe, unifying all human thinking, from Sciences to Philosophy and Metaphysics. So the great ideal of Plato and Leibniz, the ideal of Mathematics as the essence of all knowledge, might at last be attained.http://www.numdam.org/item/CTGDC_1966__8__A1_0