Everyone enjoys reading a book more when it's written clearly. So everyone listens more carefully when someone speaks with the right words. Don't say there's no skill in how you express yourself. That claim comes from someone who's either ungrateful or cowardly. Ungrateful because they dismiss God's gifts — like someone who would throw away their eyesight or hearing. Did God give you eyes for no reason? Did he put such a powerful and clever spirit in them for nothing — one that can see far and make sense of what you're looking at? What messenger moves as fast and stays as alert as your vision? Did he make the air useless when he made it so effective that your sight can travel through it? Did he create light for no purpose, when without it nothing else would matter?
Every man will read a book with more pleasure or even with more ease, if it is written in fairer characters. Therefore every man will also listen more readily to what is spoken, if it is signified by appropriate and becoming words. We must not say then that there is no faculty of expression: for this affirmation is the characteristic of an impious and also of a timid man. Of an impious man, because he undervalues the gifts which come from God, just as if he would take away the commodity of the power of vision, or hearing, or of seeing. Has then God given you eyes to no purpose? and to no purpose has he infused into them a spirit so strong and of such skilful contrivance as to reach a long way and to fashion the forms of things which are seen? What messenger is so swift and vigilant? And to no purpose has he made the interjacent atmosphere so efficacious and elastic that the vision penetrates through the atmosphere which is in a manner moved? And to no purpose has he made light, without the presence of which there would be no use in any other thing?