I’ve been trying to look for quotes to use as chapter headings for my thesis.  So far I have two:

It may be possible to do without dancing entirely. Instances have been
known of young people passing many, many months successively, without
being at any ball of any description, and no material injury accrue
either to body or mind; but when a beginning is made–when the
felicities of rapid motion have once been, though slightly, felt–it
must be a very heavy set that does not ask for more. (Jane Austen, Emma)

 and, somewhat more pithy:

Genocidal maniac or a dancer, you can’t be both.  (Lewis Black on Omar al-Bashir) 

I feel these both speak to the heart and essence of my research.  Please let me know if you, dear readers, find any more.