---
title: "Meaning & Key Takeaway of: Lewis famously advocated a metaphysical…"
description: "\"“Lewis famously advocated a metaphysical methodology based on subjecting rival hypotheses to a cost-benefit analysis. Usually there are two kinds of co..."
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---

#  Lewis famously advocated a metaphysical methodology based…

![“Lewis famously advocated a metaphysical methodology based on subjecting rival hypotheses to a cost-benefit analysis. Usually there are two kinds of cost associated with accepting a metaphysical thesis. The first is accepting some kind of entity into one's ontology, for example, abstracta…” quote by James Ladyman](https://sms4smile.com/quotes/i/b76/james-ladyman-64078_taken-for-granted_lewis-famously-advocated-a-metaphysical_1176617.jpg)   [Download](https://sms4smile.com/quotes/i/b76/james-ladyman-64078_taken-for-granted_lewis-famously-advocated-a-metaphysical_1176617.jpg) [Open image](https://sms4smile.com/quotes/i/b76/james-ladyman-64078_taken-for-granted_lewis-famously-advocated-a-metaphysical_1176617.jpg)

> ““Lewis famously advocated a metaphysical methodology based on subjecting rival hypotheses to a cost-benefit analysis. Usually there are two kinds of cost associated with accepting a metaphysical thesis. The first is accepting some kind of entity into one's ontology, for example, abstracta, possibilia, or a relation of primitive resemblance. The second is relinquishing some intuitions, for example, the intuition that causes antedate their effects, that dispositions reduce to categorical bases, or that facts about identity over time supervene on facts about instants of time. It is taken for granted that abandoning intuitions should be regarded as a cost rather than a benefit.””

[James Ladyman](https://sms4smile.com/quotes/author/james-ladyman/)

## About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Metaphysical theories are evaluated by weighing added entities against lost intuitions, treating intuition loss as a cost.

**In simple terms:** Weigh new ideas against what we must give up.

Key Takeaway

Balance novelty with intuition.

Themes

philosophy metaphysics methodology

Mood

analytical critical

Type

philosophical academic

When to use this quote

- academic debate
- theory selection
- conceptual analysis
- teaching philosophy

Key Concepts

cost‑benefit analysis ontology intuition loss

Questions to Reflect On

- How do we decide which intuitions are essential?
- When is adding an entity justified?

A Different Perspective

Intuition loss may be beneficial if it leads to clearer theories.

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[Abandoning Intuitions](https://sms4smile.com/quotes/about/abandoning-intuitions-3433338/) [Accepting Metaphysical](https://sms4smile.com/quotes/about/accepting-metaphysical-3433337/) [Advocated Metaphysical](https://sms4smile.com/quotes/about/advocated-metaphysical-3433336/) [Metaphysical Methodology](https://sms4smile.com/quotes/about/metaphysical-methodology-3433335/) [Metaphysical Thesis](https://sms4smile.com/quotes/about/metaphysical-thesis-3433334/) [Taken for granted](https://sms4smile.com/quotes/about/taken-for-granted/)

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