Language is the key to everything you can find so many smart ,genious people in the world , but there're less of them can communicate their thoughts clearly to the people around the world. that situation can be different if they can speak at least another language than their daily/mother language , imagine if one person can speak at least two languages , how many people can understand their thoughts, speech , ideas . that's why i conclude that , language is the key to everything. so that we can open our mind to everything.