---
title: "Meaning & Key Takeaway of: It is pretty clear that they are…"
description: "\"It is pretty clear that they are ineffective in stopping the course of thought at present, but they have not always been so in the past and we cannot b..."
image: "https://sms4smile.com/quotes/i/f84/john-desmond-bernal-14871_always_it-is-pretty-clear-that-they-are-ineffec_1460049.png"
---

#  It is pretty clear that they are ineffective in stopping…

![“It is pretty clear that they are ineffective in stopping the course of thought at present, but they have not always been so in the past and we cannot be sure that they will not be so in the future.” quote by John Desmond Bernal](https://sms4smile.com/quotes/i/f84/john-desmond-bernal-14871_always_it-is-pretty-clear-that-they-are-ineffec_1460049.png)   [Download](https://sms4smile.com/quotes/i/f84/john-desmond-bernal-14871_always_it-is-pretty-clear-that-they-are-ineffec_1460049.png) [Open image](https://sms4smile.com/quotes/i/f84/john-desmond-bernal-14871_always_it-is-pretty-clear-that-they-are-ineffec_1460049.png)

> “It is pretty clear that they are ineffective in stopping the course of thought at present, but they have not always been so in the past and we cannot be sure that they will not be so in the future.”

[John Desmond Bernal](https://sms4smile.com/quotes/author/john-desmond-bernal/)

## About This Quote

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

Current methods to halt thoughts are limited, though historically they sometimes worked; future effectiveness is uncertain.

**In simple terms:** Thought‑stopping tools are unreliable now and may change.

Key Takeaway

Accept limits and explore alternative mental strategies.

Themes

cognition limitations future uncertainty

Mood

cautious reflective

Type

analytical philosophical

When to use this quote

- therapy sessions
- creative work
- stress management
- decision making

Key Concepts

psychology neuroscience history of science

Questions to Reflect On

- How might future technologies improve mental control?
- What alternatives can you use now?

A Different Perspective

May underestimate other emerging techniques that could be effective.

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