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There is no substance which is not a poison; all are…

“There is no substance which is not a poison; all are poisonous. Only the dose determines.” quote by Philippus Theophrastus
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““There is no substance which is not a poison; all are poisonous. Only the dose determines.””

Philippus Theophrastus

About This Quote

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

All substances can be toxic; dosage determines harm, emphasizing the principle that “the dose makes the poison.”

In simple terms: Dose decides toxicity.

Key Takeaway

Mind dosage in exposure.

Themes

science health toxicity philosophy ethics

Mood

cautious analytical educational

Type

scientific philosophical

When to use this quote

  • medical practice
  • public health policy
  • education
  • risk communication

Key Concepts

dose‑response risk assessment chemical safety philosophical principle

Questions to Reflect On

  • How do we balance dosage guidelines with personal variability?
  • What safeguards ensure safe exposure levels?
A Different Perspective

Over‑reliance on dosage can ignore individual sensitivities.

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