请结合文段解释一个英语短语的意思。

请结合下面这段话解释for old time's sake的意思：
i quite smoking two years ago after many years of smoking . i "quite" numerous times using gum, patches,and pills of all sorts. Each time i tailed it was because i broke down and had a cigar for old time's sake.

在吸烟多年之后，两年前我戒烟了。其实我尝试“戒烟”已有很多次了，方法包括吃口香糖、贴膏药、服用各种戒烟药品。但每次都坚持不了多久，因为（旧习难改）而半途而废。

缅怀过去

第一句应该是 i quited 吧

你好！ 因为旧日的缘故 希望对你有所帮助，望采纳。