Quote by Brouwer, Luitzen Egbertus Jan
"A theorem is not true unless it can be understood and verified by the human intellect."
"A theorem is not true unless it can be understood and verified by the human intellect."
"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."