Of the Circumstances of Human Acts

We must now consider the circumstances of human acts: under which head there are four points of inquiry:(1) What is a circumstance?(2) Whether a theologian should take note of the circumstances of human acts?(3) How many circumstances are there?(4) Which are the most important of them?

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Whether a circumstance is an accident of a human act?
Whether theologians should take note of the circumstances of human acts?
Whether the circumstances are properly set forth in the third book of Ethics?
Whether the most important circumstances are "why" and "in what the act consists"?