" There are antecedent passion and consequent passion, that is, passion which precedes the use of reason or faith, and so hinders it; and passion which follows the exercise of reason or faith, and is of service to them.
A man is in a state of anger at the moment when he ought to make a decision on an action; he decides badly, for anger blinds him. But when the decision is taken, and the man is wholly engaged in the performance, it may happen that a generous anger, kept within its proper limits, is a strength. What would we do without anger, without passion generally, on the battlefields either of war or of life? "

― Antonin Sertillanges , The Church (Classic Reprint)