"If you are depressed, you are living in the past.  If you are anxious, you are living in the future.  If you are at peace, you are living in the present."

-Lao Tzu

"The key is this:  Meet today's problems with today's strength.  Don't start tackling tomorrow's problems until tomorrow.  You do not have tomorrow's strength yet.  You simply have enough for today."

-Max Lucado