“The moment you stop to think about whether you love someone, you've already stopped loving that person forever.”

“Man...heats up like a lightbulb: red hot in the twinkling of an eye and cold again in a flash. The female, on the other hand...heats up like an iron. Slowly, over a low heat, like tasty stew. But t...”

“One loves truly only once in a lifetime, Julian, even if one isn’t aware of it.”

“Most of us have the good or bad fortune of seeing our lives fall apart so slowly we barely notice.”

“There are no second chances in life, except to feel remorse.”

“Every book, every volume you see here, has a soul. The soul of the person who wrote it and of those who read it and lived and dreamed with it. Every time a book changes hands, every time someone ru...”

“But who can remember pain, once its over? All that remains of it is a shadow, not in the mind even, in the flesh. Pain marks you, but too deep to see. Out of sight, out of mind.”

“I know what you are learning to endure. There is nothing to be done. Make sure nothing is wasted. Take notes. Remember it all, every insult, every tear. Tattoo it on the inside of your mind. In lif...”

“My mind, I know, I can prove, hovers on hummingbird wings. It hovers and it churns. And when it's operating at full thrust, the churning does not stop. The machines do not rest, the systems rarely ...”

“I have little use for religion as it is practiced, or for astrology, or for belief in witchcraft or omens of good or ill-luck. I think they all stem from some insufficiency in mens minds, perhaps f...”

“It is only the innocent mind which knows what love is, and the innocent mind can live in the world which is not innocent.”

“So if you can look at all things without allowing pleasure to creep in - at a face, a bird, the colour of a sari, the beauty of a sheet of water shimmering in the sun, or anything that gives deligh...”

“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.”