What is the difference between principles and morals? (four sentences )

Ethics & principles are rules that we make up because we like them. Principles like 'enlightened self interest' can help, but being subjective, ethics have no universal footing. In contrast, morals are rules that define right and wrong willed conduct. Morality is not arbitrary or subjective.

im gonna take a guess and say gas vans and chambers

two factors or characteristics of a chapter that might make it difficult to read would be words i don't understand, or if i don't fully understand what's going on in the chapter. strategies i can use to get through the difficult material would be a dictionary, and re-reading previous chapters to get a better grasp of what the author is trying to say.