Rigour Quotes

“As for methods I have sought to give them all the rigour that one requires in geometry, so as never to have recourse to the reasons drawn from the generality of algebra.”
― Augustin-Louis Cauchy, Cours d'analyse de l'École Royale Polytechnique (Cambridge Library Collection - Mathematics)

“Upholding the value of intellectual independence doesn't mean that we need to refrain from group learning and other participatory activities.”
― Math Vault, The Definitive Guide to Learning Higher Mathematics — 10 Principles to Mathematical Transcendence