Yesss I saw this Quote come true! And I firmly believe that what you do with others will come back to you. If you are busy in a positive way, you know that it will go well with you in a positive way. If you are also working in a negative way with others, you know that it will go less well. It is certainly the case that it is very important to look at how you interact with others, feelings such as jealousy, looking down on another because you think you are better, wishing it bad for another, gossip, false testimony, enjoying another his downfall, abuse of position of power etc etc. Are all things that will come back to you sooner or later. The actions you take determine how you will fare.
It is a shame to see people treat each other so badly and falsely these days.
Be sure to treat each other and others with sincerity and fairness, and most importantly, with love! In any case, it is a fact that if you make good choices it will have good consequences for you and if you make bad choices it will have bad consequences for you.