No give up, only give in.

By doing business, I tell myself never to give up, but I know sometimes I need to give in.

For the opportunity, for the revenue and for the target we shall never give up; but for gaining the opportunity, the revenue and reaching the target, we need to give in and make a comprise in some situation.

Also sometimes we need to comprises with ourselves, give in with ourselves. Your left half needs to work out with your right half; your emotional half needs to work out with your rational half. I think this is more difficult.