Learn from your mistakes, but never regret

Just happened to chance upon this quote at some places, and which I thought it was very meaningful, especially the last sentence... :

"Life is too short...grudges are a waste of perfect happiness. Laugh when you can, apologize when you should and let go of what you can't change. Love deeply and forgive quickly, take chances, give everything and have no regrets. Life is too short to be unhappy. You have to take good with the bad smile when you are sad. Love what you got...and always remember what you had. Always forgive, never forget. Learn from your mistakes, but never regret."