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.
The demand for “originality”—with the implication that the reminiscence of other writers is a sin against originality and a defect in the work—is a recent one and would have seemed quite ludicrous to poets of the Augustan Age, or of Shakespeare’s time. The traditional view is that each new work should be a fresh focus of power through which former streams of beauty, emotion, and reflection are directed. This view is adopted, and perhaps carried to excess, by writers like T. S. Eliot, some of whose poems are a close web of quotations and adaptations, chosen for their associative value, or like James Joyce, who makes great use of the associative value of sounds and syllables.