# Quote — John Locke, An Essay Concerning Human Understanding

> I doubt not, but from self-evident Propositions, by necessary Consequences, as incontestable as those in Mathematics, the measures of right and wrong might be made out.

- Author: [John Locke](https://www.leafyquotes.com/john-locke.md)
- Book: [An Essay Concerning Human Understanding](https://www.leafyquotes.com/john-locke/an-essay-concerning-human-understanding.md)
- Source: [Wikiquote](https://en.wikiquote.org/wiki/John_Locke#An_Essay_Concerning_Human_Understanding_(1689)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/john-locke/an-essay-concerning-human-understanding/i-doubt-not

## More from this book

> No man's knowledge here can go beyond his experience.

[Quote page](https://www.leafyquotes.com/john-locke/an-essay-concerning-human-understanding/no-mans-knowledge.md)

> Preference of vice to virtue, a manifest wrong judgment.

[Quote page](https://www.leafyquotes.com/john-locke/an-essay-concerning-human-understanding/preference-of-vice.md)

> Since sounds have no natural connection with our ideas ... the doubtfulness and uncertainty of their signification ... has its cause more in the ideas they stand for than in any incapacity there is in one sound more than another to signify any idea.

[Quote page](https://www.leafyquotes.com/john-locke/an-essay-concerning-human-understanding/since-sounds-have.md)