Words have weight, something once said cannot be unsaid. Meaning is like a stone dropped into a pool; the ripples will spread and you cannot know what back they wash against.
One of the first lessons a president has to learn is that every word he says weighs a ton.
In Spanish it is very difficult to make things flow, because words are over-long. But in English, you have light words.
My arms are killing me. I didn't know words could be so heavy.
Writing poetry makes you intensely conscious of how words sound, both aloud and inside the head of the reader. You learn the weight of words and how they sound to the ear.
Each word bears its weight, so you have to read my poems quite slowly.
I write line by line, by the sound and the weight and the music of the words.
Words, too, have genuine substance -- mass and weight and specific gravity.