When you are tough on yourself, life is going to b...

Your attitude, not your aptitude, will determine your altitude.

Expect the best. Prepare for the worst. Capitalize on what comes.

I've always taught that a poor economy is the best opportunity for salespeople because the naysayers and grumblers have already given up, leaving more territory, more opportunities to be successful than in a good economy when virtually all salespeople are out there, giving it their best.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.

There is a fountain of youth: it is your mind, your talents, the creativity you bring to your life and the lives of people you love. When you learn to tap this source, you will truly have defeated age.

Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.

Probably the happiest period in life most frequently is in middle age, when the eager passions of youth are cooled, and the infirmities of age not yet begun as we see that the shadows, which are at morning and evening so large, almost entirely disappear at midday.