I've read too many books to have an all-time favorite, but here is my favorite from this month:

"Physicists claimed that time moved slower the farther you traveled toward the edge of the universe and that time also bent back upon itself, suggesting all that has ever been will repeat, perhaps endlessly. If so, there must also be a place along the continuum, at the end of one cycle and the start of the next, where the mouth and tail of time meet, where all that has been exists in a perfect timeless condition, where a husband and wife embrace in an endless kiss, where a father holds his child forever in his loving arms, where death has no dominion." - Dean Koontz, The Night Window