“Be not afraid of life. Believe that life is worth living, and your belief will help create the fact.”

Source: Attributed in posthumous publications, Einstein and the Poet (1983), p. 91

1900s, Address at the Prize Day Exercises at Groton School (1904)
Context: Of course, the worst of all lives is the vicious life; the life of a man who becomes a positive addition to the forces of evil in a community. Next to that and when I am speaking to people who, by birth and training and standing, ought to amount to a great deal, I have a right to say only second to it in criminality comes the life of mere vapid ease, the ignoble life of a man who desires nothing from his years but that they shall be led with the least effort, the least trouble, the greatest amount of physical enjoyment or intellectual enjoyment of a mere dilettante type. The life that is worth living, and the only life that is worth living, is the life of effort, the life of effort to attain what is worth striving for.

'Dao lagaao zindagi pe’ (put a stake on your life), Deendayalji’s article, quoted in L.K. Advani, My Country My Life (2008)

Knowing Yourself: The True in the False (1996)

Stay Alive All Your Life (1957)
Context: By success, of course, I do not mean that you may become rich, famous, or powerful for that does not, of necessity, represent achievement. Indeed, not infrequently, such individuals represent pathetic failure as persons. By success I mean the development of mature and constructive personality.
Through the application of the principle of constructive thinking you can attain your worthy goals. The natural outcome of living by creative principles is creative results. Believe and create is a basic fact of successful living.

Interview with The Financial Times — [Lucy Kellaway, w:Lucy Kellaway, Lunch with the FT: Werner Erhard, The Financial Times, April 28, 2012, http://www.ft.com/intl/cms/s/2/feb214a8-8f88-11e1-98b1-00144feab49a.html#axzz1v4NTTdmJ]