Communication. We all want it, whether it's between our parents, friends, spouse, etc. , it is something that connects us with those in our lives. In order to communicate well we must take the time to get to know people so that we understand them and speak to them in ways that they can understand. Listen to what others have to say, become interested in their interests, try to become familiar with the different ways we express our love and want to be loved.
Literacy is a great tool when it comes to communication and is used throughout the world, transcending time.