Hi all Please explain to me the meaning of the sentence in the title of this. It's from Love letters by Katie Fforde. The context is a teacher is talking to the students in a writing course. "Isn't it a good thing to hear the very worst-case scenario? We know that there's a lot of talent in this room, and while I don't think any of you are best friends with the head of a major publishing house, we have seen the immense amount of work and dedication you're capable of, and I know that talent and perseverance are the most important things. Cream will rise to the top. Just you lot go and be cream!" Thanks.