text: You can also get advice to better understand something. People know more than each other. A person can be very good at math, but don't know how to fix a bike. Then the other other person can fix a bike, but not really that good at math. But you need help with your math homework and you need someone to teach you how to fix the chain on your bike. If you ask the person who good at math then you will only get your math homework done. If you ask the person who know how to fix a bike then you will only get your bike fixed. But If you ask bothof them, you will get both done.