Back to school

School thy feelings, O my brother;
Train thy warm, impulsive soul.
Do not its emotions smother,
But let wisdom’s voice control.
School thy feelings; there is power
In the cool, collected mind.
Passion shatters reason’s tower,
Makes the clearest vision blind. …

School thy feelings; condemnation
Never pass on friend or foe,
Though the tide of accusation
Like a flood of truth may flow.
Hear defense before deciding,
And a ray of light may gleam,
Showing thee what filth is hiding
Underneath the shallow stream.
School thy feelings, O my brother;
Train thy warm, impulsive soul.
Do not its emotions smother,
But let wisdom’s voice control.
(“School Thy Feelings,” Hymns, no. 336)

Very true. I'd like to engrain this poem on my hand and hold it over my mouth at times. Its a hymn, but I found it in Gordon B. Hinckley's talk on controlling anger. The talk is great, I recommend reading it.