Of course motivation is not permanent. But then, neither is bathing; but it is something you should do on a regular basis.
Make failure your teacher, not your undertaker.
Success is dependent upon the glands - sweat glands.
We can let our past [difficulties and failures] beat us or teach us [to be more knowledgeable, competent and realistic in the future]!
Your attitude is more important that your aptitude.
Since belief determines behavior, doesn't it make sense that we should be teaching ethical, moral values in every home and in every school in America?