There were doors that looked like large keyholes, others that resembled the entrances to caves, there were golden doors, some were padded and some were studded with nails, some were paper-thin and others as thick as the doors of treasure houses; there was one that looked like a giant's mouth and another that had to be opened like a drawbridge, one that suggested a big ear and one that was made of gingerbread, one that was shaped like an oven door, and one that had to be unbuttoned.

My will can control anything that’s empty.

Strange as it may seem, horror loses its power to frighten when repeated too often.

Just as the setting sun turned the clouds to liquid gold.

When it comes to controlling human beings there is no better instrument than lies. Because, you see, humans live by beliefs. And beliefs can be manipulated. The power to manipulate beliefs is the only thing that counts ... Who knows what use they’ll make of you? Maybe you’ll help them to persuade people to buy things they don’t need, or hate things they know nothing about, or hold beliefs that make them easy to handle, or doubt the truths that might save them.

Maybe all the people who say ghosts don't exist are just afraid to admit that they do.

All that matters in life," the grey man went on, "is to climb the ladder of success, amount to something, own things. When a person climbs higher than the rest, amounts to more, owns more things, everything else comes automatically: friendship, love, respect, et cetera..." "Isn't there anyone who loves you?" Momo whispered.