Word?

Letters together
Meaning and no meaning
They make their way into our minds
Into our feelings
Into our actions

What are these words?
They are just words
They can hurt
They can please
They can be translated
They can be powerful

Words must be used
The deaf use them too
They are just words
They can stay with us
They can lead a life
They can be used

Yet, words
Simple
Beautiful
Sayings
Writings
They are just words

Who thought of words?
They are just words
Yet they are more
Yet they are less
In the end, however
They are just words