in so far as困难

Thinking of time as a resource to be maximised means you approach it instrumentally, judging any given moment as well spent only in so far as it advances progress toward some goal.

把时间看作一种需要最大化利用的资源，意味着你以工具性的方式对待它，只有当某一时刻推动了朝向某个目标的进展时，才认为它得到了很好的利用。