Today (archaically to-day) usually refers to:
"Tomorrow is a mystery. Today is a gift. That is why it is called the present."
"Yesterday is dead, tomorrow hasn't arrived yet. I have just one day, today, and I'm going to be happy in it."
"Every morning we are born again. What we do today is what matters most."
"Your tomorrow depends entirely on what you do today."
"The future depends on what you do today."
"Dress like you are going to meet your worst enemy today."
"Renew, release, let go. Yesterday’s gone. There’s nothing you can do to bring it back. You can’t “should’ve” done something. You can only DO something. Renew yourself. Release that attachment. Today is a new day!"
"The good times of today are the sad thoughts of tomorrow."
"Do not think of todays failures, but of the success that may come tomorrow."
"Only sick music makes money today."
"Each morning when I open my eyes I say to myself: I, not events, have the power to make me happy or unhappy today."
"No matter what happens, or how bad it seems today, life does go on, and it will be better tomorrow."