Be the last person to kill this thread

[gvidas]

I'm reminded of "the inheritance riddle."

There is this really rich man and he has two sons. One day he dies and in his will it says

"My dear sons, I am only going to give one of you my entire fortune, and you will have to race for it. Whose ever horse finishes last, wins."

The next day the two brothers set off as slow as they possibly can. In the first day they don't even make a mile, and at the end of the day they decided to stop at an inn to rest. The two brothers told the inn keeper about their race. The inn keeper told them only two words. The next day the two brothers set off as fast as they could go. What were the two words that the inn keeper told them to make them race so fast?