• People are often unreasonable, illogical and self-centered. Forgive them anyway.
• If you are kind, people may accuse you of selfish ulterior motives. Be kind anyway.
• If you are successful you will win some false friends and true enemies. Succeed anyway.
• If you are honest and frank, people may cheat you. Be honest and frank anyway.
• What you spend years building, someone could destroy overnight. Build anyway.
• If you find serenity and happiness, they may be jealous. Be happy anyway.
• The good you do today, people will often forget tomorrow. Do good anyway.
• Give the world the best you have, and it may never be enough. Give the world the best you got anyway.
• You see, in the final analysis, it is between you and God. It was never between you and them anyway.
  -Kent M. Keith, adapted by Mother Teresa

This reading is also found in JewBelong sections:
Forgiveness
Shabbat