---
title: "Meaning & Key Takeaway of: The mistakes of doctors are innumerable…"
description: "\"“The mistakes of doctors are innumerable. They err as a rule out of optimism as to the treatment, and pessimism as to the outcome.”\" — Marcel Proust"
image: "https://sms4smile.com/quotes/i/b04/marcel-proust-114_doctors_the-mistakes-of-doctors-are-innumerable_1878911.jpg"
---

#  The mistakes of doctors are innumerable. They err as a…

![“The mistakes of doctors are innumerable. They err as a rule out of optimism as to the treatment, and pessimism as to the outcome.” quote by Marcel Proust](https://sms4smile.com/quotes/i/b04/marcel-proust-114_doctors_the-mistakes-of-doctors-are-innumerable_1878911.jpg)   [Download](https://sms4smile.com/quotes/i/b04/marcel-proust-114_doctors_the-mistakes-of-doctors-are-innumerable_1878911.jpg) [Open image](https://sms4smile.com/quotes/i/b04/marcel-proust-114_doctors_the-mistakes-of-doctors-are-innumerable_1878911.jpg)

> ““The mistakes of doctors are innumerable. They err as a rule out of optimism as to the treatment, and pessimism as to the outcome.””

[Marcel Proust](https://sms4smile.com/quotes/author/marcel-proust/)

## About This Quote

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

Doctors often misjudge treatments out of hopeful bias and outcomes out of fearful bias, leading to many errors.

**In simple terms:** Doctors err due to optimism about treatment and pessimism about results.

Key Takeaway

Recognize and balance optimism and pessimism in decision‑making.

Themes

medicine bias decisionmaking

Mood

reflective critical

Type

analytical educational

When to use this quote

- patient care
- diagnostic process
- risk assessment
- medical education

Key Concepts

cognitive bias clinical judgment

Questions to Reflect On

- How can clinicians check their optimism or pessimism?
- What safeguards reduce bias in medical decisions?

A Different Perspective

Optimism may cause over‑treatment; pessimism may cause under‑treatment.

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