Everyone can teach themselves anything.
Everyone has the potential.
In the following list, I have concocted an array of foundational principles that will help sow the seeds for further knowledge building.
To help in the quest of building upon the basics, I highly recommend Googling.
To become more of an expert, learn more theory and apply it. In essence, the process of discovery is essentially being a scientist.
Trade What to Learn
Coding Computer Languages
Doctor Diagnosing Illnesses
Investing Series Licensing
I'm certain after reading this post, one could find many other jobs, degrees or fields of interest that can be learned on one's own by just going back to the basics. Let's all be scientists.