I'm on my late 20 and I went to my alma-mater library once a week in the past. I grabbed old books (Liskov, Bentley, Kernighan, some of the software engineering books, etc) a few times and I was surprised to see methods or techniques that people use these days and considered cutting edge were being discussed in a THIN, DUSTY, paper with YELLOW-ish color books.
There are plenty wisdoms in those old books yet these days people were gung-ho with the latest greatest.
I'm not saying that the latest greatest aren't advancing our thought. It's just that there are more noises than actual wisdoms.