gutter Vs stars

My mentor gave me one sentence as an encouragement:

We are all in the gutter, but some of us are looking at the stars.

Also as Schopenhauer said: when you are focusing on the detail of one tiny task or temperary end, it is necessary to jump out and see from the whole.(当你整日沉浸在具体的事物或细节上时，跳出来从整体规划的角度来审查，是非常必要的。)

anyway, maybe all of us will always be frogs in the gutter and can never get out, but the stars outside will also be there all the time, which will call for our determination to get out in any time.