“You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.”

“Prediction is very difficult, especially about the future.”

“There are trivial truths and there are great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.”

“Everything we call real is made of things that cannot be regarded as real.”

“It is not enough to be wrong, one must also be polite.”

“I myself find the division of the world into an objective and a subjective side much too arbitrary. The fact that religions through the ages have spoken in images, parables, and paradoxes means sim...”

“This is the paradox of public space: even if everyone knows an unpleasant fact, saying it in public changes everything. One of the first measures taken by the new Bolshevik government in 1918 was t...”

“Well, the way of paradoxes is the way of truth. To test reality we must see it on the tight rope. When the verities become acrobats, we can judge them.”

“A deeper thought on the surface is exactly the paradox we need.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“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.”