"Above all things, I must not get angry. If I do get angry I knock all the teeth out of the mouth of the poor wretch who has angered me"

This quote by Franz Schubert talks to the significance of managing one's feelings, particularly anger. Schubert is recommending that if he does blow up, he will take out his anger on the person who has angered him in a violent way. This quote indicates that Schubert knows his own propensity to blow up and is attempting to take steps to prevent it. He is emphasizing the importance of controlling his feelings and not letting them overcome him.

The quote likewise speaks with the repercussions of Schubert's anger. He is suggesting that if he does blow up, he will take out his anger on the person who has outraged him in a violent way. This suggests that Schubert is aware of the possible repercussions of his anger and is attempting to take actions to prevent it.

In general, this quote talks to the value of managing one's feelings and not letting them overcome them. Schubert is stressing the significance of managing his anger and not letting it cause violent outbursts. He is likewise knowledgeable about the prospective effects of his anger and is trying to take steps to prevent it.