hammering in a quote

"Illogical thinkers throw names and slurs around because they have no arguments with which to rebut their opponents. Rational people have to keep hammering their points home."

"There are 435 members of Congress. There's one 'Morning Joe' show. Hopefully, we can keep hammering the argument that you can disagree with other people and have debates but remain civil."

"The teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron."

"For my part, if I consider poetry as an object, I maintain that it is born of the necessity of adding a vocal sound (speech) to the hammering of the first tribal music."