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If an author does not give reasons for his propositions…

“If an author does not give reasons for his propositions, they can only be treated as expressions of personal opinion on his part.” quote by Mortimer J. Adler
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““If an author does not give reasons for his propositions, they can only be treated as expressions of personal opinion on his part.””

Mortimer J. Adler

About This Quote

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

Arguments lacking justification are mere opinions, not evidence‑based claims.

In simple terms: Unjustified claims are just opinions.

Key Takeaway

Demand evidence for statements.

Themes

critical thinking logic skepticism

Mood

analytical inquisitive

Type

educational philosophical

When to use this quote

  • academic debate
  • policy making
  • media analysis
  • personal decision making

Key Concepts

epistemology rhetoric

Questions to Reflect On

  • What evidence would you require to accept a claim?
  • How do you differentiate opinion from fact?
A Different Perspective

People often accept opinions without questioning them.

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