He quit because, "Rice is a liar" ? All politicians lie.
What kind of an American citizen are you if you quit because you found a politician to be lying?
-Be a productive member of society.
-Work and contribute to the good of the economy.
-Stay teaching to "impose" your beliefs on the young naive college freshman.
-Work to get the "offending" politician out of office. (Granted Rice was not elected, but there are avenues to work)
Either the guy likes grandstanding or just had to conjure up some crazy story to hide the fact he is lazy and didn't want to work.
Also, as a professor, he thinks that the college should censor who they invite to speak? Let the person speak to offer another opinion on a subject. That's what college is all about. Hearing different sides, digesting the information, making sure you remember the source of the info you are taking in, consider what personal agenda they may or may not be pushing, then make your own decision.
Next time Boston College should ask an adjunct prof. for approval for any invited speaker?