People can't live with change if there's not a changeless core inside them.
The 7 Habits of Highly Effective People: Powerful Lessons in Personal ChangeDear cat, your ears are flipped inside out, so I know you’re not listening to a word I’m not saying.
99 Cents For Some NonsenseWhatever is going on inside your head has everything to do with how well you end up performing.
The Art of Mental Training: A Guide to Performance Excellence