Donald Trump

You have to love what you do. If you don't love it, don't do it.

Never ever give up. Don't give up. Don't allow it to happen. If there's a concrete wall in front of you, go through it, go over it, go around it, but get to the other side of that wall.

Keep the big picture in mind, but never lose sight of the details. Because if you lose sight of the details, they can send you down.