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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
by what principles
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "by what principles" is correct and usable in written English.
You can use it when inquiring about the foundational beliefs or rules that guide a decision or action. Example: "By what principles do you determine the ethical implications of your research?"
✓ Grammatically correct
Academia
News & Media
Encyclopedias
Alternative expressions(4)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
4 human-written examples
Guided by what principles?
Academia
Children are extremely good at discerning what their parents, teachers and other significant adults actually believe, and by what principles they live.
News & Media
However, rather than trying to cover all the themes in Marcus in this light in addition to the topics discussed below, he talks about time, fate, death, the cycles of change in the cosmos—I focus on one basic question for Marcus' project of living Stoically: by what principles does a Stoic act?
Science
By what principles?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
We have a rhetorical habit of locating the American spirit in the heartland, when the outer extremities may be more revealing: the country's attitude about whom we let into our borders and by what principle we might welcome them has always defined who we are.
News & Media
The theories are too rich, and we don't yet know by what principle the particular view can be stopped from generating what we consider to be implausible accounts of the problem cases as well.
Science
Hill writes, "Facebook gets people to hand over information about themselves all the time; by what principle would it be unreasonable to sometimes hand some of that information back?" A spokesperson later told Hill that at least 100 signals go into friend recommendations, a handful of which were actually known to her.
News & Media
Skeptics have challenged the adequacy or reliability of these claims by asking what principles they are based upon or what they actually establish.
Encyclopedias
This question "is best answered by considering what principles licensing others to take our lives could be reasonably rejected" (Scanlon 1998, p. 85).
Science
Rawls argues that the fairness of the basic structure of society may be assessed by asking what principles representatives of citizens (parties) would choose to determine the distribution of primary goods in society if they were behind a "veil of ignorance" (Rawls 1971, 12).
Science
The district court did not state in its findings what principles held by petitioner or by the Communist Party were opposed to the Constitution and indicated lack of attachment.
Academia
Expert writing Tips
Best practice
When using "by what principles", ensure the context clearly indicates what domain the principles belong to (e.g. ethical, legal, moral).
Common error
Avoid using "by what principles" in contexts where the principles are too abstract or ill-defined. Instead, strive for clarity and specificity in identifying the relevant guiding principles.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "by what principles" functions as an interrogative prepositional phrase. It is used to inquire about the fundamental guidelines, rules, or beliefs that underpin a particular action, decision, or system. As Ludwig AI confirms, the phrase is correct and usable in written English.
Frequent in
News & Media
34%
Academia
33%
Encyclopedias
33%
Less common in
Science
0%
Wiki
0%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "by what principles" is a grammatically correct and usable interrogative phrase employed to inquire about the foundational rules, beliefs, or guidelines that inform a decision or action. Ludwig AI validates its proper usage. While relatively rare, this phrase finds its niche in academic, news media, and encyclopedia contexts. It serves the communicative purpose of eliciting clarification and understanding the rationale behind specific choices or systems. When using "by what principles", ensure clarity about the domain of principles and avoid overly abstract contexts. Alternatives such as "on what basis" or "according to what guidelines" offer nuanced options for expressing similar inquiries.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
on what basis
This alternative focuses on the justification or foundation for a decision, rather than the guiding rules.
according to what guidelines
This phrase is more specific, focusing on established guidelines rather than general principles.
by which standards
This alternative emphasizes the benchmarks or criteria used for evaluation.
under what criteria
Similar to 'by which standards', this highlights the specific criteria used in decision-making.
following what tenets
This option suggests a stricter adherence to established doctrines or beliefs.
guided by what values
This shifts the focus to the underlying values that inform actions.
based on what reasoning
This alternative emphasizes the logical or rational basis for a decision.
informed by what beliefs
This highlights the role of beliefs in shaping actions.
by virtue of what norms
This phrase emphasizes adherence to established social or ethical norms.
on what grounds
Focuses on the justification or reasons behind a particular action or decision.
FAQs
How can I use "by what principles" in a sentence?
Use "by what principles" to inquire about the fundamental rules or beliefs guiding a decision or action. For example: "By what principles do you evaluate the success of this program?"
What phrases are similar to "by what principles"?
Similar phrases include "on what basis", "according to what guidelines", or "under what criteria", each with slightly different connotations.
Is "by what principles" formal or informal?
"By what principles" is generally considered a neutral to formal expression, suitable for academic, professional, and journalistic contexts.
What's the difference between "by what principles" and "what principles guide"?
"By what principles" is more interrogative and analytical, while "what principles guide" is a more direct way of asking about the guiding factors. Both are grammatically correct.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested