Two of mine, which took a few dings and nicks to come up with are:

No one ever promised that life's uncertain path would always be smooth andwhen you take the inevitable spill, you just have to pick yourself back up, maybe a little nicked and dinged here and there and hopefully a bit wiser, brush yourself off and keep putting one foot in front of the other - with a smile on your face, hope in your heart, and, in my case anyway, a bit of mischief in your eyes.

and

Perfect love comes not from finding someone perfect to love, but rather from finding how to love someone imperfect perfectly.