"Leadership is the key to 99 percent of all successful efforts."
"The key to making healthy decisions is to respect your future self. Honor him or her. Treat him or her like you would treat a friend or a loved one. A Stanford study showed that those who saw a photo of their future self made smarter financial decisions."
"Before anything else, preparation is the key to success."
"The 'self-image' is the key to human personality and human behavior. Change the self image and you change the personality and the behavior."
"The key to sitcom success is miserable people. If you see a happy couple, it's just gone, like when Sam and Diane got together on Cheers."
"You have to make peace with yourself. The key is to find the harmony in what you have."
"The real religion of the world comes from women much more than from men - from mothers most of all, who carry the key of our souls in their bosoms."
"I always say be humble but be firm. Humility and openness are the key to success without compromising your beliefs."
"Republican patience with how unionism deals with the political institutions, and with key issues like equality and human rights, will be tested because, obviously, there will be a battle a day on these matters. So lets face up to all of this with our eyes wide open."
"Forgiveness is the key to action and freedom."