The primary thing when you take a sword in your hands is your intention to cut the enemy, whatever the means. Whenever you parry, hit, spring, strike or touch the enemy’s cutting sword, you must cut the enemy in the same movement. It is essential to attain this. If you think only of hitting, springing, striking or touching the enemy, you will not be able actually to cut him.
The McNamara fallacy, named for Robert McNamara, the US Secretary of Defense from 1961 to 1968, involves making a decision based solely on quantitative observations (or metrics) and ignoring all others. The reason given is often that these other observations cannot be proven.
The fallacy refers to McNamara's belief as to what led the United States to defeat in the Vietnam War—specifically, his quantification of success in the war (e.g., in terms of enemy body count), ignoring other variables.
In 1964, the historian Bernard Rudofsky curated a show at MoMA called Architecture Without Architects, celebrating the formal qualities of a range of traditional building practices drawn from around the world.
Setting aside the endlessly troubled implications of the Western gaze on “primitive” cultures, the show had the very constructive impacts of encouraging formal diversity at a time when mainstream architecture had grown desperately, myopically monochromatic and of suggesting that “non-architects” were capable not only of making good judgments about their environments but of actually taking the lead in creating them.