Question 158 — Anger

We must next consider the contrary vices: (1) Anger that is opposed to meekness; (2) Cruelty that is opposed to clemency. Concerning anger there are eight points of inquiry:

(1) Whether it is lawful to be angry?

• (2) Whether anger is a sin?
• (3) Whether it is a mortal sin?
• (4) Whether it is the most grievous of sins?
• (5) Of its species;
• (6) Whether anger is a capital vice?
• (7) Of its daughters;
• (8) Whether it has a contrary vice?