Expecting the best means that you put your whole heart (i.e. the central essence of your personality) into what you want to accomplish. People are defeated in life not because of lack of ability, but for lack of wholeheartedness. They do not wholeheartedly expect to succeed. Their heart isn't in it, which is to say, they themselves are not fully given.
Norman Vincent PealeEnthusiasm releases the drive to carry you over obstacles and adds significance to all that you do. It tones up your physical vitality and gives warmth to all your personal relationships. When you associate with enthusiasm long enough it grabs you and takes over within you.
Norman Vincent Peale