That's a sweet idea.

if that's what you want

Okay, children, if that's what you want, you can start going to a public school. / Хорошо, дети, если это то, что вы хотите, вы можете начать ходить в общественную школу.

Let it be forever.

This should be very interesting.

It is beyond me.

Come look at this.

That's life.

I don't know how that happened.

That's freaking me out.

It was implied.