Source: Farnam Street blog, Mar 2016
Never Stop Learning
If anything besides sheer productivity defined Asimov, it was a thirst for knowledge. He simply never stopped learning, and with that attitude, he grew into a mental giant who was more than once accused of “knowing everything”:
Nothing goes to waste, if you’re determined to learn. I had already learned, for instance, that although I was one of the most overeducated people I knew, I couldn’t possibly write the variety of books I manage to do out of the knowledge I had gained in school alone. I had to keep a program of self-education in process.
And, as I went on to discover, each time I wrote a book on some subject outside my immediate field it gave me courage and incentive to do another one that was perhaps even farther outside the narrow range of my training…I advanced from chemical writer to science writer, and, eventually, I took all of my learning for my subject (or at least all that I could cram into my head — which, alas, had a sharply limited capacity despite all I could do).
As I did so, of course, I found that I had to educate myself. I had to read boks on physics to reverse my unhappy experiences in school on the subject and to learn at home what I had failed to learn in the classroom — at least up to the point where my limited knowledge of mathematics prevented me from going farther.
When the time came, I read biology, medicine, and geology. I collected commentaries on the Bible and on Shakespeare. I read history books. Everything led to something else. I became a generalist by encouraging myself to be generally interested in all matters.