Quote by Brouwer, Luitzen Egbertus Jan
"What we perceive as abstract is often more fundamental than what appears concrete."
"What we perceive as abstract is often more fundamental than what appears concrete."
"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."