the major cause of the civil war. theyou could explain actions of good, decent men like the piouslee and stonewall jackson. they fight because virginia needs them not that they support the confederate cause. they did not believe in slavery. his state needs them, and so he went to war. host: so, you taught 20,000 students at virginia tech over the years. how many in a classroom when you did your lectures? when wer robertson: were on the quarter system, there were 577. then when we went over to the semester system, so you did not did notas many -- you have as many electives, so it went to 350. host: after you spend a semester with the students, what did they most often say what they change their mind about? professor robertson: the human