Reggae icon Bob Marley, in his highly acclaimed Redemption Song, exhorted listeners: "Emancipate yourselves from mental slavery, none but ourselves can free our minds."Most fans attribute the saying to him. Only a relative few are aware that Marley was quoting from a 1937 speech given by pan-African visionary Marcus Mosiah Garvey. The ultimate irony is that they don't know because they have never read Marcus Garvey, the philosophical fountainhead for Marley.Were it not for Marley's clever musical cloaking of this profound idea, it would never have gained such popularity. And this speaks to two unfortunate truths which may be limiting the career achievements of a lot of people. Both reveal why many people, while celebrating the Jamaica 50 Jubilee, remain mentally enslaved to states such as fear, ignorance, low self-esteem, self-doubt and pessimism.