WE NEED TO LEARN EVERYTHING BECAUSE THE MORE WE LEARN ,THE MORE WE KNOW. BUT THE ONLY WAY WE KNOW TO LEARN IS TO BY READING BOOKS. YEAH BY READING BOOKS WE CAN LEARN BUT WE DONT KNOW THERE ARE ALSO THOUSAND S OF WAYS TO LEARN AND NO YOU WILL SEE ONE WAY TO LEARN WHICH IS BY WATCHING DOCUMENTARIES WHERE ALL THE PEOPLE GIVE THEIR EXPECTATIONS ON A TOPIC. IF YOU NEED TO YOU CAN NOTE THE IMPORTANT LINES AND MAKE AN ASSIGNMENT FOR YOURSELF SINCE YOU MAY NEED IT IN FUTURE.