We may say that a car travels 20 miles an hour even if it only travels for half an hour. We can explain our form of expression by saying that the car travels with a speed which enables it to make 20 miles an hour. And here also we are inclined to talk of the velocity of the car as of a state of its motion. I think we should not use this expression if we had no other “experiences of motion” than those of a body being in a particular place at a certain time and in another place at another time; if, e.g., our experiences of motion were of the kind which we have when we see the hour hand of the clock has moved from one point of the dial to the other.
47).   A tribe has in its language commands for the execution of certain actions of men in warfare, something like “Shoot!”,
39.
“Run!”, “Crawl!”, etc. They also have a way of describing a man's build. Such a description has the form “He can run fast”, “He can throw the spear far”. What justifies me in saying that these sentences are descriptions of the man's build is the use which they make of sentences of this form. Thus if they see a man with bulging leg muscles but who as we should say has not the use of his legs for some reason or other, they say he is a man who can run fast. The drawn image of a man which shews large biceps they describe as representing a man “who can throw a spear far”.
48).   The men of a tribe are subjected to a kind of medical examination before going into war. The examiner puts the men through a set of standard[s|i]sed tests. He lets them lift certain weights, swing their arms, skip, etc. The examiner then gives his verdict in the form “So-and-so can throw a spear” or “can throw a boomerang” or “is fit to pursue the enemy”, etc. There are no special expressions in the language of this tribe for the activities performed in the tests; but these are referred to only as the tests for certain activities in warfare.