Today's "Words of Mark Twain" offering came from the attitude he developed in his missives after coming out of depression in 1904 due to the passing of his wife, Livy.
(If I already posted this word, my apologies!)
Polemic:
polemic /pə-lĕm′ĭk/
noun
1. A controversial argument, especially one refuting or attacking a specific opinion or doctrine.
2. A person engaged in or inclined to controversy, argument, or refutation.
3. One who writes in support of one opinion, doctrine, or system, in opposition to another; one skilled in polemics; a controversialist; a disputant.
Similar: controversialist disputant
The American Heritage® Dictionary of the English Language, 5th Edition •