и только(I have known this gentleman for many years and have always accepted the fact that his success has come through sheer hard work – and that's that!)
вот и весь разговор(Usually meaning the end of something, or a final part in something; that's the end. there is nothing more to do or say about the matter. george serebryakov)
и точка(I'm going with him and that's that. • It is quite simple. You're grounded for a week and that's that!
• I won't sell it for less than 50 dollars and that is that.
• I'm not going and that's that.4uzhoj)