While likely true in its conclusions, the saying, at least for me, is difficult to believe that Jay Leno ever said it.
If ever there was a more overpaid, pampered, pumped up semblance of a ‘comedian’ he is it. He hasn’t written his own jokes for years, I’d guess. Just a network puppet that the Execs decided was a good replacement for Johnny Carson.
Don’t believe it.
If I were to pass this on, I'd delete all references to Jay Leno. The celebs referenced in these types of emails almost never say what is attributed to them. If you ever see an email with good, conservative wisdom from Robin Williams or Andy Rooney, it's always bogus. Doesn't mean the email isn't good. Just ignore the attribution to the celeb.