A mathematician is a machine for turning coffee into theorems. Paul Erdős
Every good mathematician is at least half a philosopher, and every good philosopher is at least half a mathematician. Gottlob Frege
... it is true that a mathematician who is not somewhat of a poet, will never be a perfect mathematician. Karl Weierstrass
Archimedes will be remembered when Aeschylus is forgotten, because languages die and mathematical ideas do not. "Immortality" may be a silly word, but probably a mathematician has the best chance of whatever it may mean. G. H. Hardy
I have hardly ever known a mathematician who was capable of reasoning. Plato
Let no man who is not a Mathematician read the elements of my work. Leonardo da Vinci