“The good Christian should beware of mathematicians. The danger already exists that mathematicians have made a covenant with the devil to darken the spirit and confine man in the bonds of Hell.”
“Sceptic, mathematician, Christian; doubt, affirmation, submission.”
“Every good mathematician is at least half a philosopher, and every good philosopher is at least half a mathematician.”
“As a poet and as a mathematician, he would reason well; as a mere mathematician, he could not have reasoned at all.”
“A mathematician who is not also something of a poet will never be a complete mathematician.”
“When a student comes and asks, "Should I become a mathematician?" the answer should be no. If you have to ask, you shouldn't even ask.”