Run, don't walk, from anyone who has 'secret' information not meant for sharing with all humankind.
Failure is an event... never a person.
Argue for your limitations, and sure enough, they're yours.
All that a man achieves -- and all that he fails to achieve - is the direct result of his own thought process. A man's strength's and failing are his own, not another man's, and they can only be altered by himself, never another.
Each of us carries about a great many 'truths' with which we are not only comfortable but which we consider sacrosanct. These 'truisms' can be things we learned at our parent's knee... idealities we have nurtured over the years... or prejudices we have hugged to ourselves over a period of time. More often than not, our personal convictions take precedence over antithetical arguments. This is why most people are not good listeners. They hear another person's thesis but simultaneously they form an argument to back their own belief. The result is that they really aren't listening. They are simply hearing. And they mentally counter what it is they choose to hear.
The body is a servant of the mind. It obeys the operations of the mind. There is a mind/body connection that is powerful. As a healer, I am convinced disease and health, like circumstances, are rooted in thought. Sick thoughts express themselves through a sickly body. Thoughts of fear can kill a man. People who live in fear of disease are most likely the very people who get the disease. Conversely, if you would improve your body, guard your mind.