Lost time is never found again.
Benjamin Franklin

If you don't have time to do it right, when will you have time to do it over?
John Wooden

Time is the coin of your life. It is the only coin you have, and only you can determine how it will be spent. Be careful lest you let other people spend it for you.
Carl Sandburg
It is strange that the years teach us patience; that the shorter our time, the greater our capacity for waiting.
Elizabeth Taylor

Time is what we want most, but what we use worst.
William Penn

"Time"
Pink Floyd

Ticking away the moments that make up a dull day
Fritter and waste the hours in an off-hand way
Kicking around on a piece of ground in your home town
Waiting for someone or something to show you the way

Tired of lying in the sunshine staying home to watch the rain
You are young and life is long and there is time to kill today
And then one day you find ten years have got behind you
No one told you when to run, you missed the starting gun

And you run and you run to catch up with the sun but it's sinking
Racing around to come up behind you again
The sun is the same in a relative way, but you're older
Shorter of breath and one day closer to death

Every year is getting shorter, never seem to find the time
Plans that either come to naught or half a page of scribbled lines
Hanging on in quiet desperation is the English way
The time is gone, the song is over, thought I'd something more to say

Home, home again
I like to be here when I can
When I come home cold and tired
It's good to warm my bones beside the fire
Far away, across the field
The tolling of the iron bell
Calls the faithful to their knees
To hear the softly spoken magic spell

Here is a link that might be useful: PINK FLOYD - TIME