I wish to express within a word or two an attitude or way of living that sacrifices for the foreseeable future and strives to reap better long-term rewards at the expense of short(er)-term effort. This attitude emphasises purposeful living, looking towards the future and (sort-of) favours delayed gratification. I guess the biggest emphasis is one of improving, investing in and preparing for the future, not the sacrificial part. I do not mind single word or phrase suggestions, I'm trying to get a best fit.
Intended sentence: "It is also of interesting sociological note that what X interprets as the best attitude towards living is one of purposeful creativity and ..." I am unsure whether or not I will retain the "purposeful creativity" if I get better words for the sentence.