Quote by Brouwer, Luitzen Egbertus Jan
"A statement is meaningful only if it can be verified by mental construction."
"A statement is meaningful only if it can be verified by mental construction."
"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."