Here are some small things I gathered over the years and did not know where to put. Michael Barany - A Dusty Discipline or how the blackboard plays a crucial role in the construction mathematical knowledge (and why mathematicians complain when they have to use something else) Une petite histoire de la géométrie algébrique by André Weil. Le changement de perspective avec le langage des schémas , by Michel Raynaud. William Thurston - On Proof and Progress on his own experience, and what it means to make progress in mathematics. Hardy - The Indian mathematician Ramanujan about the way Ramanujan thought, and his conjectures (whether true or false). Gian-Carlo Rota - The Pernicious Influence of Mathematics upon Philosophy , or why abuse of formalism outside mathematics and logic is a slippery slope.