It is a well-known experience that the only truly enjoyable and profitable way of studying mathematics is the method of "filling in details" by one's own efforts. — Cornelius Lanczos Copy Share Image
“The thirteenth-century philosopher Roger Bacon claimed that “nobody can obtain to proficiency in the science of mathematics by the method hitherto known unless he devotes to its study thirty or forty years.” Today, the entire body of mathematics known to… — Joshua Foer Copy Share Image