knowledge
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In the dark
To be kept uninformed or unaware about a situation or details.
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Scratch the surface
To deal with only a very small, superficial part of a subject or problem, implying much more remains to be explored.
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Universal truth
A fundamental concept or principle that is consistently true and accepted by everyone, everywhere, and at all times.
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To lift the veil
To reveal a previously hidden truth or to gain a deeper understanding of something that was obscure.
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a gold mine of information
An extremely valuable source that provides a wealth of useful knowledge or facts.
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a font of wisdom
Someone or something that is a rich and inexhaustible source of profound knowledge, sound judgment, or valuable advice.
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To be disabused of an idea
To realize that a belief or misconception one held was actually false.
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Disabuse someone of a notion
To correct someone's mistaken belief or false idea, often gently but firmly.
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Familiar concept
An idea or notion that is already well-known or easily understood due to prior exposure.
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Beyond my ken
Too difficult or impossible for someone to understand or know.
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The basic facts
The essential, fundamental information or core details about a particular subject or situation, stripped of unnecessary embellishment.
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explore thoroughly
To examine or investigate every aspect of something in great detail and completeness.