A long and powerful list of the qualities of true knowledge begins here and runs all the way through to verse 12. First come: not craving respect, not putting on a show, not causing harm to any being, the ability to forgive, and the quality of being straightforward.
Then: service to one's teacher, keeping body and mind clean, staying firm in purpose, and keeping the senses under control. These qualities are the roots of knowledge. A tree without roots falls at the first storm. Knowledge without these qualities has nothing to stand on.