The only true thing is what's in front of you right now.
“You know that smell, when you put your nose up to a pine tree?" I told her I did perfectly. "No matter how long it has been, you always will. Like you are storing a part of that tree in your own bo...”
“Time was a dazzling lie, a magician worth a bird in his hat. The truth, I felt certain, was that everything happened at once. How old was I? I was every age at the same time. All the days of our li...”
“The truth." Dumbledore sighed. "It is a beautiful and terrible thing, and should therefore be treated with great caution.”
“The truth is rarely pure and never simple.”
“Never tell the truth to people who are not worthy of it.”