A classical framework for persuasion, first articulated more than two thousand years ago, still holds up remarkably well as an editing checklist for modern marketing copy. Ethos, pathos, and logos — credibility, emotion, and logical proof — describe three distinct dimensions of persuasion, and copy that's genuinely strong tends to have all three working together, not just one dominating at the expense of the others.
Why All Three Dimensions Need to Be Present
Copy built purely on credibility, with no emotional resonance, reads as dry and forgettable, even if every claim is technically well-supported. Copy built purely on emotion, with no credible support, reads as manipulative or hollow once the initial feeling fades. Copy built purely on logical proof, with no emotional stakes established, fails to make the reader care enough to act on the logic in the first place. Genuinely persuasive copy draws on all three, in proportion to what the specific reader and offer actually need.
Editing a piece of copy through this lens should check for:
- Ethos: Is it clear why the reader should trust this source specifically, beyond just the claims made?
- Pathos: Does the reader feel something appropriate at the right points as the copy progresses?
- Logos: Is every significant claim backed by clear, credible proof the reader would find convincing?
A Simple Framework
- Read through a draft once specifically checking whether credibility is established clearly enough
- Read through again checking whether the reader is likely to feel the intended emotion at each point
- Read through a third time checking that every meaningful claim has real, credible support behind it
- Revise any section that's leaning too heavily on one dimension while neglecting the other two
> Tip: If a piece of copy feels emotionally flat despite strong logical arguments, or feels manipulative despite strong emotional appeal, that imbalance is usually a sign one of the three dimensions was neglected during the original draft — a targeted editing pass for that specific dimension often fixes it more efficiently than a full rewrite.
Example
Before: A product page listing detailed technical specifications and credentials with no emotional framing, reading as accurate but forgettable and failing to motivate action.
After: The same page restructured to open with the emotional stakes of the problem, supported by the same credible technical proof, and reinforced by clear credibility markers throughout — engaging all three dimensions instead of just one.
Common Mistakes
- Relying entirely on logical proof while neglecting to establish genuine emotional stakes
- Leaning heavily on emotional appeal without credible support, risking a manipulative impression
- Establishing credibility once at the top of a page and never reinforcing it throughout
- Editing for only one dimension instead of deliberately checking all three in separate passes
Once a draft is edited across all three dimensions, checking the finished piece's overall length and pacing is a reasonable final step. SeoWolf's Word Counter can help confirm the piece stays appropriately tight after revision.
A framework this old survives in modern copywriting because persuasion hasn't actually changed — people still need to trust the source, feel something real, and see credible proof before they act, in roughly that combination.