We often measure life by the amount of happiness we get, or have. We measure worth by what we have achieved or acquired. By those measures we would lose our happiness and worth if something where to take those away. While we would be sad or mad for a time, we would find a way to see the Sun through the clouds and be happy once more.
Yet, if we where to measure our happiness and worth by those whom we have helped then we would lose neither.
No one can take away the acts of kindness and compassion once they have been done, and no one can take away the feelings left in the giver and the receiver as a result of those actions.
Do not measure your life by what you have gained, but rather by what you have helped others gain. For if you can help someone gain confidence, respect, self-worth, forgiveness, etc. Then you have given from yourself something that can not be bought or taken. A true gift.
Have a great day!