[量体裁衣 / 量體裁衣, liáng tǐ cái yīㄌㄧㄤˊ ㄊㄧˇ ㄘㄞˊ ㄧ] lit. measure the body then tailor the suit (成语 saw); fig. to act according to actual circumstances; To live within one's means.#62043
[量入为出 / 量入為出, liàng rù wéi chūㄌㄧㄤˋ ㄖㄨˋ ㄨㄟˊ ㄔㄨ] to assess one's income and spend accordingly (成语 saw); to live within one's means; You can only spend what you earn.#63543