The two volumes Computational Commutative Algebra by Martin Kreuzer and Lorenzo Robbiano (Springer, 2000 and 2005) contain lots of epigraphs, at least one at the beginning of each section. Some of them are rather weird.
Here are some examples from Volume 1:
Dura Lex, sed Lex. (Ancient Latin Proverb)
(Section on term orderings)
Divide et impera. (Philip of Macedonia)
(Section on the division algorithm)
Eliminate, eliminate, eliminate. Eliminate the eliminators of elimination theory. (Shreeram S. Abhyankar)
(Section on, well, elimination)
No keyboard present. Hit F1 to continue. (DOS Error Message)
(Appendix on CoCoA)