My favourite quote is
Life is not a dress rehearsal. I don't know who said it although Google reveals a lot of books by that title, does anyone know the author?
It's my favourite quote and one I live by daily because it really shook me when I first heard it. I realised that I'd lived for years with my dreams on hold because following them wasn't the sensible or expected thing to do. When I heard this quote it really hit me that I only had once chance at life and I had to make the most of it right now, not later, and certainly not in 10 or 20 years time when it was "safe" to quit the steady well-paying job and pursue my dream of being a full-time illustrator.
Within weeks of hearing that quote (I think it was on a Brian Johnson podcast from memory) I'd left my safe job and begun my own business as an illustrator (in this economic climate, crazy I know!). It has turned my whole life around. I now have a reason to get up in the morning, and if I died tomorrow the only regret I'd have is not being able to see where my dreams eventually take me, I certainly wouldn't regret not living them because I'm living them right now.
Anyway that's my absolute favourite quote

Another favourite is
one day at a time and
Love is the action of serving people without any desire to receive anything back.