Yes, it is fun to break grammatical rules in titles of posts. It is simply a tease to get you to follow up on two links, one old and one new.
1. A motivational author, Earl Nightingale, wrote "The Strangest Secret" many decades ago. You can read about him here. You can also listen to his original recording, and read 30 quotes from it, here. I read (and enjoyed) this a long time ago.
2. More recently, Paul Rosenberg wrote his own take on "The Strangest Secret" at a blog called Freeman's Perspective. I think you will find it interesting; anyway, I did, because I had a similar adventure at the age of 17.