There is a well known book in American Literature called The Education of Henry Adams. it as an excellent account of how one outstanding mind acquired its understanding of our civilization. It is worth noting that only a few pages of that book are devoted to formal schooling. Education is a process that, for the inquiring mind, goes on at all times and throughout life, long after the degrees have been acquired.
Cowan, Donald, "The Education of a Scientist" (1963). Education. 4.