Life feels long when you're living it, but then you realize how short it is as you near the end of it.

I remember seeing an interview with George Harrison as he was dying of cancer. He said "the last 30 years went by like that" and snapped his fingers. There's never enough time so cherish it all as much as possible. Or as another musician (Warren Zevon) said as he was also dying - "Enjoy every sandwich."