According to Napoleon Hill, in his book, Think and Grow Rich, below are the ten mind stimuli every human being can work with. Please note that not all of them are good ways, but they are what they are, mind stimulants.
1. Fear
Although negative, fear speeds up the human mind and makes the person experiencing the fear think faster and in a more heightened state. Think of how calculative cheats become when plotting ways in which they could cheat on their partners without getting caught. Or, think of how calculative a rich man (who has once tasted poverty) would be with his money, because of the fear of being broke again. Fear of an eminent attack will also speed up any man's mind in coming up with the best way to defend himself.
2. Auto-Suggestion
Auto-Suggestion is when you suggest something to you mind by repeating the thing over and over again. For example, if you say this out loud many times every day- 'I am a very successful man'- you mind might not take it as a truth at first (that is if you aren't already successful), but after hearing it over and over, it will sink into your subconscious mind, and then your mind will be stimulated to find the best way to make you a success at whatever you do.
