"It is six in the morning. The house is asleep. Nice music is playing. I prove and conjecture."
— Paul Erdős

"A mathematician, like a painter or poet, is a maker of patterns. If his patterns are more permanent than theirs, it is because they are made with ideas."
— G. H. Hardy

"The scientist does not study nature because it is useful; he studies it because he delights in it, and delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living."
— Henri Poincaré

"Being a mathematician is a bit like being a manic depressive: you spend your life alternating between giddy elation and black despair."
— Steven G. Krantz

"The good Christian should beware of mathematicians and all those who make empty prophesies. The danger already exists that the mathematicians have made a covenant with the devil to darken the spirit and to confine man in the bonds of Hell."
— St. Augustine