Quote by Brouwer, Luitzen Egbertus Jan
"What cannot be proven can sometimes be intuitively grasped with certainty."
"What cannot be proven can sometimes be intuitively grasped with certainty."
"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."
"The intuitionist does not accept the axiom of the excluded middle."
"Creating mathematics is like creating poetry or music."
"The act of intuitively creating a mathematical system requires freedom of thought."