self-cultivation vs education

self-cultivation and education both are nouns.

Word	Noun	Adjective	Verb	Adverb
self-cultivation	Yes	No	No	No
education	Yes	No	No	No

As nouns, education is a hypernym of self-cultivation; that is, education is a word with a broader meaning than self-cultivation:

self-cultivation (noun)	education (noun)
the process of educating yourself	the activities of educating or instructing; activities that impart knowledge or skill
	the profession of teaching (especially at a school or college or university)
	the result of good upbringing (especially knowledge of correct social behavior)
	knowledge acquired by learning and instruction
	the gradual process of acquiring knowledge