What Stephen King Book is this Quote from?

Question

Time takes it all, whether you want it to or not. Time takes it all, time bears it away, and in the end there is only darkness. Sometimes we find others in that darkness, and sometimes we lose them there again

Answer 1

Sounds like its from the Dark Tower series.

Answer 2

Is it Langoliers

Answer 3

I don't know that it came from one of his novels, I think it may have come from his book "On Writing", but I am not sure.  It also could have been written after he had his terrible accident.  

Answer 4

the dark tower