I have now gone through two pages of the “8,789 Words Of Wisdom” book, and I really do not know if this particular saying really contains words of wisdom other than, “What you see is what you get.” I guess the strength in that is in understanding what it is you are looking at, and what the possibilities, probabilities and potentials are. These are the keys to anything you are looking at, especially when we take into consideration your personal patterns of behavior.
If you can understand what stimuli are and the way in which stimuli affects you, then you are ahead of the game because you can get ahead of the curve and change your personal history.
There is another side of this, which is that not everything is as it appears to be. How many times have you thought one thing based on appearances, and it turned out to be something else? This happens more often than not.