“The poet only asks to get his head into the heavens. It is the logician who seeks to get the heavens into his head. And it is his head that splits.”

“The romantic seeks only to get his head into the heavens. The rationalist seeks to get the heavens into his head – and it is his head that splits.”

“The difference between the poet and the mathematician is that the poet tries to get his head into the heavens while the mathematician tries to get the heavens into his head.”

“He is a [sane] man who can have tragedy in his heart and comedy in his head.”

“Look at the eyebrows. They mean that infernal pride which made Satan so proud that he sneered even at heaven when he was one of the first angels in it. Look at his moustaches, they are so grown as to insult humanity. In the name of the sacred heavens look at his hair. In the name of God and the stars, look at his hat.”

“The man who cannot believe his senses, and the man who cannot believe anything else, are both insane, but their insanity is proved not by any error in their argument, but by the manifest mistake of their whole lives. They have both locked themselves up in two boxes, painted inside with the sun and stars; they are both unable to get out, the one into the health and happiness of heaven, the other even into the health and happiness of the earth.”

“Yes, he said in a voice indescribable, you are right. I am afraid of him. Therefore I swear by God that I will seek out this man whom I fear until I find him, and strike him on the mouth. If heaven were his throne and the earth his footstool, I swear that I would pull him down. How? asked the staring Professor. Why? Because I am afraid of him, said Syme; and no man should leave in the universe anything of which he is afraid.”