Obstacles to learning - How to make learning permanent

I am an avid reader. I read a lot, but lot of it is not sticky in the sense that I forget most of it soon. Though I read some for passing time, some being interesting and some more being necessary. I just came across this  post in Purple Pointr blog. 

He mentions three reasons for it, namely not understanding the words, going too fast and missing some concepts and just reading the theory without application. Now I understand that i've been guilty of these three things which affected my retention of things learned. If we and use this, surely it would be of great help. 

Ofcourse, the best way to get something is to teach it.