Used and loved by millions
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
main principle behind
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "main principle behind" is correct and usable in written English.
It can be used to refer to the fundamental idea or concept that supports or explains something. Example: "The main principle behind this theory is that all living organisms evolve over time through natural selection."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(19)
main rationale behind
core principle behind
main driver behind
main intuition behind
main focus behind
main factor behind
main presumption behind
main influence behind
main problem behind
main motivation behind
main culprit behind
main strategist behind
main concept behind
main issue behind
main idea behind
underlying rationale for
primary motivation for
root cause of
chief reason for
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
10 human-written examples
The main principle behind each radioisotopic application method and its sensitivity and benefits will be given.
Science
Gove said the main principle behind free schools, which will be independent but funded by the government, was "closing the attainment gap".
News & Media
First, we briefly outline the main principle behind these techniques.
The bright effect pupil is the main principle behind locating the position of the eye.
The main principle behind our programming model is everything as code.
This is the main principle behind Seahawks Coach Pete Carroll's book, Win Forever, as well as the way he runs the team.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
50 human-written examples
The main principles behind in vitro knee wear simulator testing are described, contrasting the displacement control and force control standard TKR wear test methods.
We describe in detail the physical and virtual architecture of the system, which simultaneously engages building occupants and facility managers, as well as the main principles behind the interface design and component functionalities.
Science
Additional analysis will be required to explore how regulatory networks will constrain metabolic phenotype [37], [38] and to what extent the development of dynamic formalism can contribute to unraveling the main principles behind the robustness of cancer cells [39], [40].
Science
Therefore, one of the main principles behind ecological immunology is that immune systems are not cost free and will carry different costs on different levels.
Science
Although local detail therefore is not provided, an attempt has nevertheless been made to provide in a concise manner the basic working knowledge which, hopefully, will provide the reader with the main principles behind efficient trypanosomosis control.
Expert writing Tips
Best practice
When using "main principle behind", ensure that the principle you are referring to is indeed the most important or foundational one. Avoid using it for secondary or less significant principles.
Common error
Avoid using "main principle behind" when discussing multiple equally important principles. If there are several key principles, it's more accurate to say "key principles behind" or "main principles."
Source & Trust
81%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "main principle behind" functions as a connector, linking a concept or action to its foundational reason or core concept. As evidenced by Ludwig, it introduces the most important principle that explains or supports something.
Frequent in
Science
40%
News & Media
30%
Wiki
10%
Less common in
Formal & Business
10%
Encyclopedias
10%
Reference
0%
Ludwig's WRAP-UP
The phrase "main principle behind" serves to highlight the most fundamental reason or concept underlying a particular phenomenon or action. Ludwig AI confirms its grammatical correctness and usability across diverse contexts. While not extremely frequent, it maintains a presence primarily in scientific, news, and wiki-based domains. When using this phrase, ensure the 'principle' you're referencing is, in fact, the core foundation, and avoid overuse when multiple principles are equally relevant. Alternatives like "core idea underpinning" or "primary rationale for" may offer nuanced substitutes depending on the specific context.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
chief reason behind
Simple substitution, focusing on the reason.
core idea underpinning
Replaces 'principle' with 'idea' and uses 'underpinning' to convey the supporting nature.
central tenet supporting
Substitutes 'principle' with 'tenet' to indicate a fundamental belief or doctrine.
primary rationale for
Replaces 'principle' with 'rationale' to focus on the logical basis.
key concept underlying
Uses 'concept' instead of 'principle' to denote a general notion or idea.
foundational basis of
Emphasizes the basic and essential nature of the underlying support.
basic logic of
Highlights the reasoning and logic behind something.
fundamental justification for
Replaces 'principle' with 'justification' to highlight the reason or excuse for something.
underlying philosophy of
Focuses on the philosophical foundation.
driving force of
Suggests the impetus or energy source behind something.
FAQs
How can I use "main principle behind" in a sentence?
You can use "main principle behind" to introduce the most important reason or concept that explains something. For example, "The "main principle behind" cognitive behavioral therapy is that your actions are influenced by your thoughts".
What are some alternatives to "main principle behind"?
Alternatives include "core idea underpinning", "central tenet supporting", or "primary rationale for", depending on the specific nuance you wish to convey.
Is it correct to use "main principle behind"?
Yes, the phrase "main principle behind" is grammatically correct and commonly used in various contexts, as evidenced by its usage in reputable sources. Ludwig AI confirms its validity.
What's the difference between "main principle" and "principle behind"?
"Main principle" refers to the most important principle, while "principle behind" refers to the underlying reason or concept. "Main principle behind" combines both, emphasizing the most important underlying reason.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.3/5
Expert rating
Real-world application tested