Right-Hand and Left-Hand Paths

Wilber's View

Wilber groups the four quadrants into two "paths" defined by methodology rather than by individual/collective scale. The Right-Hand path covers both exterior quadrants (Upper-Right and Lower-Right) — anything that can be described in "it"-language: seen, measured, registered by the senses or their instrumental extensions, studied empirically, behaviorally, monologically. Its objects are, in themselves, value-neutral surfaces — "nothing is better or worse, good or bad… The surface forms simply are, and you simply observe and describe them." The Left-Hand path covers both interior quadrants (Upper-Left and Lower-Left) — anything that has to be interpreted rather than merely observed: meaning, intention, culture, value. Where Right-Hand knowledge is validated by objective truth (does the map match the territory), Left-Hand knowledge is validated by sincerity in the individual case (can the speaker be trusted, are they self-deceived) and by mutual understanding in the collective case (can we, through dialogue, come to shared meaning) — validity claims that empirical observation alone can't settle.

The distinction is doing real argumentative work for Wilber, not just organizing a diagram: he uses it to define subtle reductionism precisely as collapsing Left-Hand phenomena into Right-Hand descriptions — treating "mind" as fully captured by "brain," treating culture as fully captured by observable social behavior — while still sounding holistic because the correlations between the two really do exist (every point on the Right has a correlate on the Left). His example: a thought correlates with a measurable change in brain physiology (Right-Hand, Upper-Right), but the thought's actual meaning is something only the thinker can tell you, and even complete knowledge of the neurochemistry will never disclose it (Left-Hand, Upper-Left) — correlation without reduction.

In Sex, Ecology, Spirituality

I will often refer to the study of both the Upper-Right and Lower-Right quadrants as the Right-Hand path: the path of that which can be seen with the eye of flesh or its extensions. In short, the path of "it"-language (objectivist, monological, observable, empirical, behavioral variables).

— Sex, Ecology, Spirituality, ch. 4, "A View from Within"

For example, I have a thought; a thought occurs to me. That's the given holon, which we will use as an example. For this holon, in the Upper-Right quadrant, there is a change in brain physiology, a change that can be described in completely objective terms (it-language)… But that is not how I experienced the thought, and I will never actually experience my thought in those terms. Instead, the thought had an interesting and important meaning to me, which I may or may not share with you. And even if you know what every single atom of my brain is doing, you will never know the actual details of my thought unless I tell you.

— Sex, Ecology, Spirituality, ch. 4, "A View from Within"

…in the Upper-Left quadrant, the validity criterion is not so much truth as truthfulness, or sincerity. The question here is not "Is it raining outside?" The question here is: when I tell you it is raining outside, am I telling you the truth or am I lying?… It is not so much whether the map matches the territory, but whether the mapmaker can be trusted.

— Sex, Ecology, Spirituality, ch. 4, "A View from Within"

…the criterion for validity in the Lower-Left quadrant is not just the truth of my statement, nor the truthfulness with which I put it, but whether you and I can come to mutual understanding with each other. Not objective, not subjective, but intersubjective.

— Sex, Ecology, Spirituality, ch. 4, "A View from Within"

See Also

• four-quadrants — the fuller scheme this Right/Left split is drawn from
• flatland — subtle reductionism as the collapse of Left-Hand into Right-Hand description
• big-three — the same terrain organized as I/We/It rather than as two paths