Obedience is the key that opens every door.
Friends are like coals in a fire - together, they glow; apart, they grow cold.
Your book bill ought to be your biggest extravagance.
And what about you? You must be some kind of beardless dwarf?...You mean to say, that you're a daughter of Eve?...Y-yes, but, you are in fact... human?
You can't get a cup of tea large enough or a book long enough to suit me.
First be sure that you know exactly what you want to say. Then be sure you have said exactly that.