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
be secure in the knowledge
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be secure in the knowledge" is correct and usable in written English.
You can use it when you want to convey a sense of confidence or assurance about a particular fact or situation. Example: "You can be secure in the knowledge that your hard work will pay off in the end."
✓ Grammatically correct
News & Media
Academia
Formal & Business
Alternative expressions(5)
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
12 human-written examples
"Parents should be secure in the knowledge that all publicly funded schools will employ teachers with relevant training and qualifications".
News & Media
Parents are as complex as their offspring but you can be secure in the knowledge that, in the vast majority of cases, they just want their child to be happy, as do I.
News & Media
The longer he remains in office, the happier Mugabe will be, secure in the knowledge that Tsvangirai's combative style and diminishing influence will be unable to unify the opposition against him.
News & Media
When the next killer storms strike, and they will, all Americans should be secure in the knowledge that their government, local and federal, will be there ready and able to help.
News & Media
A visitor to Yale can be secure in the knowledge that she is in the very best of hands, working with terrifically diverse, skilled and driven teams-and receiving the very best care in the world.
Academia
This along with the trade off to expose your secrets via the patenting process has caused firms of all industries to rethink the once obvious choice to patent one's innovations and be secure in the knowledge that their value was protected and competitors could not steal them.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
Sampras is secure in the knowledge that Agassi will never match his 13 Grand Slams.
News & Media
But I'm secure in the knowledge that the company operates and was privatised above the law".
News & Media
I was secure in the knowledge that I had been there on the birth of New York mambo".
News & Media
U.A.B. held a 17-7 leandand was secure in the knowledge that Army would have to come back by passing.
News & Media
"These are kids who are secure in the knowledge that Atlanta is the center of the hip-hop universe," Sanneh writes of Schmelling's subjects.
News & Media
Expert writing Tips
Best practice
When using "be secure in the knowledge", ensure that the knowledge you are referring to is clearly defined and relevant to the context, providing a solid foundation for the sense of security being conveyed.
Common error
Avoid using "be secure in the knowledge" when the information is speculative or lacks sufficient evidence; it can create a false impression of certainty and reliability.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be secure in the knowledge" functions as an idiomatic expression to convey a state of confidence or assurance derived from having specific information or understanding. Ludwig shows its use to reassure or provide comfort based on known facts.
Frequent in
News & Media
65%
Academia
15%
Formal & Business
10%
Less common in
Science
5%
Wiki
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "be secure in the knowledge" is a phrase used to express confidence or assurance derived from having specific information. According to Ludwig, the phrase is grammatically correct and most frequently appears in news and media, academic, and formal business contexts. While alternatives like ""have confidence in"" or ""rest assured"" exist, "be secure in the knowledge" specifically highlights the role of information in creating a sense of security. Remember to use this phrase when you want to instill confidence based on established facts, but avoid it when the information is speculative. With this understanding, you can confidently incorporate "be secure in the knowledge" into your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
have confidence in
Focuses on the feeling of trust and reliance, instead of highlighting information as the source of security.
be confident that
Emphasizes the feeling of confidence, while the original phrase focuses on the basis for that confidence.
be certain of
Highlights the state of certainty rather than the grounding of that certainty in knowledge.
rest assured
Emphasizes reassurance and a lack of worry, differing from actively possessing knowledge.
be assured of
Similar to 'rest assured', it emphasizes the reassurance provided.
know for certain
Focuses on the act of knowing, removing the element of security derived from that knowledge.
be convinced of
Stresses a state of being persuaded, rather than the assurance from information.
take comfort in knowing
Adds an element of emotional solace that the original phrase does not explicitly convey.
find security in the fact that
Highlights security, but through a different syntax and an emphasis on the 'fact'.
rely on the understanding that
Shifts the focus to reliance and understanding, rather than the sense of safety from knowledge.
FAQs
How can I use "be secure in the knowledge" in a sentence?
You can use "be secure in the knowledge" to indicate confidence based on specific information. For example, "Students can "be secure in the knowledge" that their tuition fees cover all course materials".
What are some alternatives to "be secure in the knowledge"?
Alternatives include "have confidence in", "rest assured", or "be certain of", each carrying a slightly different nuance.
Is it more appropriate to say "be secure in the knowledge" or "be confident in the knowledge"?
While both are grammatically correct, "be secure in the knowledge" implies a sense of safety and assurance derived from information, whereas "be confident in the knowledge" suggests a belief in one's understanding or application of that information.
What's the difference between "be secure in the knowledge" and "know for certain"?
"Be secure in the knowledge" suggests a feeling of safety or assurance because of the information you possess. "Know for certain"/"know for certain" simply means having definitive knowledge, without necessarily implying a sense of security.
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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