L. E. J. Brouwer

"The mistakes and unresolved difficulties of the past in mathematics have always been the opportunities of i…"

"I would not dare to say that there is a direct relation between mathematics and madness, but there is no do…"

"Using, as an excuse, others’ failure of common sense is in itself a failure of common sense."

"I then reached for a time honored tactic used by mathematicians: if you can't solve the real problem, chang…"

"Too often, this concern for the big picture is simply obscurantist and is put forward by people who prefer …"

"The delusion of invincibility can never grow up in the mind of anyone except one who has never met a strong…"