on battles of the mind

LOGOMACHY, n. A war in which the weapons are words and the wounds punctures in the swim-bladder of self-esteem -- a kind of contest in which, the vanquished being unconscious of defeat, the victor is denied the reward of success.

'Tis said by divers of the scholar-men
That poor Salmasius died of Milton's pen.
Alas! we cannot know if this is true,
For reading Milton's wit we perish too.

- Ambrose Bierce, The Devil's Dictionary