Renaissance Humanism – named to differentiate it from the Humanism we have today – was an intellectual movement which originated in the thirteenth century, and came to dominate European thought during the Renaissance, in which it played a considerable role in creating. At the core of Renaissance Humanism was using the study of classical texts to alter contemporary thinking, breaking with the medieval mindsets and creating something new.
Yes because a lot of things can be done with words, look at Ghandi or Martin Luther King Junior's "I have a Dream" speech.