#Physics

"Why is it so difficult for us to think in relative terms? Well, for the good reason that human nature loves absoluteness, and erroneously considers it as a state of higher knowledge."

"There is a philosophy that says that if something is unobservable -- unobservable in principle -- it is not part of science. If there is no way to falsify or confirm a hypothesis, it belongs to the realm of metaphysical speculation, together with astrology and spiritualism. By that standard, most of the universe has no scientific reality -- it's just a figment of our imaginations."

"Mathematics is the cheapest science. Unlike physics or chemistry, it does not require any expensive equipment. All one needs for mathematics is a pencil and paper."

"When we say two bodies 'touch', what we mean (without knowing it) is that both electromagnetic fields are interacting to avoid physical interpenetration and ... that happens well before subatomic particles touch!"

"No, this trick won't work... How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love?"

"Physics isn't the most important thing. Love is."

"Credentials are like potential energy, the compliments of a name on paper, in documents, word of mouth, but faith is like kinetic energy, the motion and the force that which is witnessed. Hence in the end it is the faith rather than the credentials that really takes you places."

"It is curious that the human mind could blindly accept an infinite speed but had reservations to accept a finite one, simply because it was too large!"

"Maybe knowledge is as fundamental, or even more fundamental than [material] reality."

"Sometimes I wonder if my heart is like a black hole--it's so dense that there's no room for light, but that doesn't mean it can't still suck me in."

"I hope I have helped to raise the profile of science and to show that physics is not a mystery but can be understood by ordinary people."

"Energy is liberated matter, matter is energy waiting to happen."

"Photons have mass? I didn’t even know they were Catholic."

"...I am not, however, militant in my atheism. The great English theoretical physicist Paul Dirac is a militant atheist. I suppose he is interested in arguing about the existence of God. I am not. It was once quipped that there is no God and Dirac is his prophet."

"I try to show the public that chemistry, biology, physics, astrophysics is life. It is not some separate subject that you have to be pulled into a corner to be taught about."

"I remember discussions with Bohr which went through many hours till very late at night and ended almost in despair; and when at the end of the discussion I went alone for a walk in the neighbouring park I repeated to myself again and again the question: Can nature possibly be so absurd as it seemed to us in these atomic experiments?"

"The death of God left the angels in a strange position."

"The Universe is not only queerer than we suppose, but queerer than we can suppose."

"In the beginning there was nothing, which exploded."

"Order is heaven's first law."