In our childhood, gradually formed on the subconscious, and we have an impact. Subconscious will affect a person's own ability to judge, in particular, will affect their ability to overcome difficulties to judge. For example, some people have to speak when they were in someone else's sarcasm or fight, since then, subconsciously, he might be afraid to speak in public. • reference to Henry Ford's words: "Do you think you can do it, you can think you can not do, how do you think will produce what results."