Open your eyes and look for some man, or some work for the sake of men, which needs a little time, a little friendship, a little sympathy, a little sociability, a little human toil....It is needed in every nook and corner. Therefore search and see if there is not some place where you may invest your humanity.
Life is too short to waste any amount of time on wondering what other people think about you. In the first place, if they had better things going on in their lives, they wouldn't have the time to sit around and talk about you. What's important to me is not others' opinions of me, but what's important to me is my opinion of myself.
If you wish to experience peace, provide peace for another. If you wish to know that you are safe, cause another to know that they are safe. If you wish to better understand seemingly incomprehensible things, help another to better understand. If you wish to heal your own sadness or anger, seek to heal the sadness or anger of another.