Proverbs 14:29-30

He who is slow to anger has great understanding (and profits from his self-control), but he who is quick-tempered exposes and exalts his foolishness (for all to see). A calm and peaceful, and tranquil heart is life and health to the body, but passion and envy are like rottenness to the bones. 

We can profit significantly from self-control and controlling our thoughts—peace in our lives and leaving strife behind leads to greater happiness. At the same time, anger negatively concentrates our emotions and makes it harder to hear directly from God. Peace is our daily goal.