How to Learn in the 21st Century

At this time (the 21^st century), "memory and learning" research has reached at a level we can utilize for improving how we actually learn. This research field has developed certain specific strategies that enable us to create our own "specific tactical plan."

How to Learn More by Studying Less?

Being intelligent within … (a) subject is often a factor (of) just how much exposure you have had to it. - Scott Young, a "Marco Polo" of Learning.

To learn more in less time, it only depends on motivating yourself. But, in the first place, Why do we fail to motivate ourselves?
This is because majority of learners use low-efficient study methods when they want to learn more; and this takes more of their time. In turn, this more-time-requirement leads to a tendency of preference for "ineffective study methods".

Therefore, what do we have to do to motivate ourselves?