Quote by Brouwer, Luitzen Egbertus Jan
"A mathematical system is valid only insofar as it serves human understanding."
"A mathematical system is valid only insofar as it serves human understanding."
"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."