I totally agree with everything Mr. Gates says.

I would like to urge you to take notes digitally though. A long time ago, I started taking notes on Evernote while I am reading and this changed how much information I retain.

Now, my notes are interlinked and organized around subjects. I can reach what I have read or what I have thought about a subject while I was reading about a book about it almost instantly.

The only downside with taking your notes digitally is that you have to tend to your notes and weed out the bad ones constantly.