Esther Meek, following Frame's model closely, calls these perspectives the rules, the self, and the world, and emphasizing the existential perspective, she states, "Knowing is the responsible human struggle to rely on clues to focus on a coherent pattern and submit to its reality" (LTK, 1).
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In his view, the marketplace of ideas is full of worldviews competing for the allegiance of each individual, and for some people, final allegiance to a system is due to sense experience, emotions, or political affiliation, while for others it is their particular religious tradition (Judaism, Islam, Buddhism, Bahá'í Faith, etc.) or secular philosophy (empiricism, rationalism, Marxism, postmodernism, etc.).
She is the author of Longing to Know (2003), in which she elaborates an epistemology based on the multiperspectivalism and presuppositionalism of John Frame and the tacit knowledge theory of Michael Polanyi.