Zūfáng búshì chángjiǔzhījì, wǒ háishi xiǎng mǎi yí tào zìjǐ de fángzi.
Renting isn't a long-term solution - I still want to buy my own place.
Tips
history
Rooted in 《战国策·赵策》: 「岂非计久长,有子孙相继为王也哉」, Queen Dowager Zhao weighing 'a plan that lasts long' for her dynasty. Reinforced in 《汉书·元帝纪》: 「非长久之计」, rejecting short-term fixes as not sustainable.
usage
Almost always in the negation 不是长久之计 ('not a long-term solution'), used to argue against a quick fix. The positive form 作为长久之计 appears in formal writing.