"It is in the interests of the pursuit of knowledge--and it is in our own national interest--that this revolution of national independence succeed. For the Communists rest everything on the idea of a monolithic world--a world where all knowledge has a single pattern, all societies move toward a single model, and all problems and roads have a single solution and a single destination. The pursuit of knowledge, on the other hand, rests everything on the opposite idea--on the idea of a world based on diversity, self-determination, freedom. And that is the kind of world to which we Americans, as a nation, are committed by the principles upon which the great Republic was founded."
January 1, 1970
https://en.wikiquote.org/wiki/John_F._Kennedy