Acquire knowledge not only issues related to memorizing theories / concepts of the subjects were obtained from the classroom, knowledge is more related to the practical way to see the surrounding conditions. Therefore, it is not uncommon to a theory only a mere concept is difficult because practiced since his time have changed. Here's how to develop a curiosity be the ability to think?.
Do they not look at the camel how it was created, Holly Koran:88: 17
• Knowledge should be able to make you can remember, it is not called knowledgeable if you cannot remember the knowledge that you have got. Seek that you may remember from concept / theory that you get just by asking him to repeat the formulation of theories or concepts that have been described, circuit / chronological series of stories that have witnessed so on.