Seize the day!

Never regret, but do remember those regrets so the next time you won't regret. Learn from your actions, it doesn't matter if it's the third time you've made the same mistake as long as you learn from it someday. You only live once, you go out and seize the day; be kind to all, because they may lack something you have: the value of life. Happiness is contagious, go out there and spread the virus.