Warren Buffett says successful people have one two-letter word in common.

No.

No is like yes for people who take on too much, have weak boundaries and who get lost in other people’s work.

Buffett goes further.

He says no to almost everything.

A clear way to look at this advice is to think of getting in your car and taking off on a trip.

Even if you know where you want to go, you can’t turn at every intersection or you will never get to your destination.