Nickleus

“We absolutely must leave room for doubt or there is no progress and there is no learning. There is no learning without having to pose a question. And a question requires doubt. People search for certainty. But there is no certainty. People are terrified — how can you live and not know? It is not odd at all. You only think you know, as a matter of fact. And most of your actions are based on incomplete knowledge and you really don't know what it is all about, or what the purpose of the world is, or know a great deal of other things. It is possible to live and not know.”
― Richard P. Feynman, The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman

“There's a big difference between knowing the name of something and knowing something.”
― Richard P. Feynman

“It is surprising that people do not believe that there is imagination in science. It is a very interesting kind of imagination, unlike that of the artist. The great difficulty is in trying to imagine something that you have never seen, that is consistent in every detail with what has already been seen, and that is different from what has been thought of; furthermore, it must be definite and not a vague proposition. That is indeed difficult.”
― Richard P. Feynman, The Meaning of It All: Thoughts of a Citizen-Scientist

“I learned from her that every woman is worried
about her looks, no matter how beautiful she is.”
― Richard P. Feynman, Surely You're Joking, Mr. Feynman!: Adventures of a Curious Character