More quotes by Brian Tracy

"Today the greatest single source of wealth is between your ears."
"The ability to discipline yourself to delay gratification in the short term in order to enjoy greater rewards in the long term, is the indispensable prerequisite for success."
"If you envy successful people, you create a negative force field of attraction that repels you from ever doing the things that you need to do to be successful. If you admire successful people, you create a positive force field of attraction that draws you toward becoming more and more like the kinds of people that you want to be like."
"Never complain, never explain. Resist the temptation to defend yourself or make excuses."
"An attitude of positive expectation is the mark of the superior personality."