And another thing, I shall always be here.

You may be sure I shall always be here.

He will complain of you, he'll begin to say things against you behind your back, he'll whisper things against you to any stray person he meets, he'll be for ever whining and whining; he'll write you letters from one room to another, two a day, but he won't be able to get on without you all the same, and that's the chief thing.

Make him obey you.

If you can't make him you'll be a fool.