I love reading and meditating on quotes from the saints. Though often short and simple, they are filled with spiritual beauty and truth. Here is one that struck me by its simplicity and wisdom:
"Every moment comes to us pregnant with a command from God, only to pass on and plunge into eternity, there to remain forever what we have made of it."
St. Francis de Sales
Never again will we have the chance to use that moment to its fullest - it is gone forever. Makes one want to use time wisely, doesn't it?