“You can know the name of a bird in all the languages of the world, but when you’re finished, you’ll know absolutely nothing whatever about the bird… So let’s look at the bird and see what it’s doing — that’s what counts. I learned very early the difference between knowing the name of something and knowing something.” Richard Feynman

“I don’t know what’s the matter with people: they don’t learn by understanding, they learn by some other way — by rote or something. Their knowledge is so fragile!” Richard Feynman

“The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.” Albert Camus
“We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.” Richard Feynman

“I am born into an environment - I know not whence I came nor whither I go nor who I am. This is my situation as yours, every single one of you. The fact that everyone always was in this same situation, and always will be, tells me nothing. Our burning question as to whence and whither - all we can ourselves observe about it is the present environment. That is why we are eager to find out about it as much as we can. That is science, learning, knowledge; it is the true source of every spiritual endeavor of man. We try to find out as much as we can about the spatial and temporal surroundings of the place in which we find ourselves put by birth. And as we try, we delight in it, we find it extremely interesting." Erwin Schrödinger

“You can recognize truth by its beauty and simplicity. When you get it right, it is obvious that it is right – at least if you have any experience – because usually what happens is that more comes out than goes in.” Richard Feynman
“I don’t know anything, but I do know that everything is interesting if you go into it deeply enough.” Richard Feynman

“An extraterrestrial being, newly arrived on Earth - scrutinizing what we mainly present to our children in television, radio, movies, newspapers, magazines, the comics, and many books - might easily conclude that we are intent on teaching them murder, rape, cruelty, superstition, credulity, and consumerism. We keep at it, and through constant repetition many of them finally get it. What kind of society could we create if, instead, we drummed into them science and a sense of hope?” Carl Sagan
“You have no responsibility to live up to what other people think you ought to accomplish. I have no responsibility to be like they expect me to be. It’s their mistake, not my failing.” Richard Feynman

“Learn what the rest of the world is like. The variety is worthwhile.” Richard Feynman
“I think it´s much more interesting to live not knowing than having answers which might be wrong.” Richard Feynman

“We live to discover beauty”

“No man ever steps in the same river twice, for it is not the same river and he is not the same man.” David Deutsch

(…) “We do understand why the world doesn’t run in reverse. There is a reason, we have a scientific explanation, and it´s called the arrow of time. We are compelled to travel into the future. And that´s because the arrow of time dictates that as each moment passes, things change. And once these changes have happened, they are never undone.
Permanent change is fundamental part of what it means to be human. You know, we all age as the years pass by. People are born, they live and they die. I suppose it´s part of the joy and tragedy of our lives. But out there in the universe, those grand and epic cycles appear eternal and unchanging, but that´s an illusion. See, in the life of the universe, just as in our lives, everything is irreversibly changing." Professor Brian Cox