Advice from my Grandfather:
Life's not about whether, or not, you get knocked down (because that is going to happen), it's about getting up and what you do after that.
Live your life right. Do the right thing whether it's easy, or hard, whether people are looking, are not. You do that because when life does knock you down, you can get right up, rather than lie there and wallow in self-pity about what you should have done.
It's the best advice I ever received.