This is a "link" article. http://dilbert.com/blog/entry/who_are_you/
This is the point of the linked essay:
You Are What You Learn.
Here is a little sample:
"If all you know is how to be a gang member, that's what you'll be, at least until you learn something else. ... A person changes at a fundamental level as he or she merges with a particular field of knowledge. If you don't like who you are, you have the option of learning until you become someone else. ... There's almost nothing you can't learn your way out of. Life is like a jail with an unlocked, heavy door. You're free the minute you realize the door will open if you simply lean into it."
And now, a few words from your host. A first, big, fat, important point:
Learning involves a lot more than just reading something. You can read about politics and the economy, or about fitness, or about dog grooming, every day and you will not have learned more than the barest, most superficial factoids about the multifarious complexities of any of those fields.
True learning requires study. Study requires access to multiple sources of information, configured by people or institutions with multiple points of view. It then requires reading all this information with a truly open mind, with all biases identified and neutralized to the extent possible. It probably requires writing, or otherwise restating, your understanding of the material in a context enabling correction by others that are conversant with the material. (This would be also called "school.")
Self-study can be great, but you miss the opportunity to defend your conclusions, which is key to weeding out the errors.
And learning doesn't just stop at study. In many, if not most, fields of knowledge true learning requires the physical application of the knowledge. A doctor isn't licensed to practice until he or she can demonstrate his or her physical ability to carry out the procedures required. A plumber, car mechanic, or manicurist isn't, either. (And a ballroom dancer can't say she's learned a figure until she can execute it correctly.)
In the context of fitness, this means you can read about best practices all day every day, but if your level of activity does not go beyond moving from bed to car to office chair to car to couch, you probably haven't actually learned much about fitness. You may have many facts at your disposal but without a physical understanding of the practice required, those facts, and the time spent acquiring them, are useless and wasted.
So for example I consider myself to be learning yoga and ballroom dancing because I practice yoga and ballroom dancing. But all I know about running is theory.
Applied to nutrition, this means that you can have every diet book ever written on your shelves at home, but if your daily diet goes from bagel to cheeseburger to pizza, you haven't learned a damn thing. You may have all those books because of magical thinking, you may even have done what they said - for a while - but you didn't look at the information in them as part of an entire body of actual, scientific, knowledge.
Acquiring information doesn't take much time or effort. That's why most people stop there, and don't go beyond into true study or into the physical application of the knowledge.
Your choices, in many ways, are the most true definition of what you've learned. And your life is the manifestation of your choices. If you are not happy with your life, learn your way out of it. Choose to learn, because learning gives you a different set of choices.