Believe that problems do have answers. Believe that they can be overcome. Believe that they can be handled. And finally, believe that you can solve them.
You Can If You Think You Can (1987)
People become really quite remarkable when they start thinking that they can do things. When they believe in themselves they have the first secret of success.
Positive Thinking Every Day (1993)
Happiness will never come if it's a goal in itself; happiness is a by-product of a commitment to worthy causes.
The Power of Positive Living (1992)
When obstacles or difficulties arise, the positive thinker takes them as creative opportunities.
Optimism is a philosophy based on the belief that basically life is good, that, in the long run, the good in life overbalances the evil.
Empty pockets never held anyone back... it's only empty heads and empty hearts that do it.
Enthusiasm Makes the Difference
Never compare yourself or your achievements with others, but make your comparisons only with yourself.
Stay Alive All Your Life (1957)
Tell yourself every morning as you go to work that you love your job. Think of it as interesting, even fascinating.
Power of the Plus Factor (1987)
Change your thoughts and you can change the world.
As quoted in Back on Track by Deborah Norville (1997)
If you put off everything till you're sure of it, you'll get nothing done.
As quoted in Behavior in Organizations by Greenberg and Baron (1995)