Imagine you are driving to work and suddenly remember you forgot to do the dishes last night. What pops into your head is not a picture of you doing the dishes or of the dirty dishes themselves, but rather the words 'I forgot to do the dishes'.
Orwell theorized that a state could limit its citizens' thoughts by limiting their vocabulary.
All humans should have words. This predicts that a child who grew up without any contact with humans would assign basic vocalizations to things. This does not predict that this same child would have a language, which is words and syntax.
The easiest way to transmit a meme is using words.
Hellen Keller developed a sigh language to communicate with her parents (e.g. pretending to shiver to indicate she wanted ice cream) before receiving any help form a tutor.
Picturing things in your mind may be a trick used to remember information, but the pictured things you must already how words to describe.
Untranslatable words correspond to aspects of cultures that are not shared (e.g. I have never seen a good translation of mikvah).
Thinking to yourself usually takes the form of an inner monologue.
The majority of cartoons are physical comedy; the most famous bits from cartoons are dialogs.