I had to admit it myself, however.

Whenever the three boys had a disagreement or anybody did something to displease Bruno, he would get quite beside himself with rage, acting in a way which he must have been sorry for later on.

I have to repeat again, though, that he had at bottom a noble and generous nature and would never have willingly harmed anyone or committed a cruel deed.

But one could see that his outbreaks of passion might drive him to desperate deeds.
"Salo, his brother, never became angry, but he had a very unyielding nature just the same.

He was just as obstinate in his way as his brother, and never gave in.