Is there ever an instance when the first letter of a sentence IS NOT capitalized?

In every instance of writing, it seems to be a known fact that the first letter of a sentence is always capitalized, including sentences that start with eBay or iPhone. Is there ever an instance that the first letter of a sentence is left lowercase, like for a quote or something?

If posting a direct quote where the text starts with a lower case then your quote should also start lower case. Remember the first piece of text in a quote ill always be the quotation mark, therefore the first letter is not needing to be capitalized as it is not exactly the start of the sentence.

When you use some types of bullet point lists.

If you start with a number that's not written out. An example would be:
100 men applied for the vacancy.

Yes, when you use a colon after a sentence: the next sentence is not capitalized. In many instances in the KJV of the Bible you will find that the next sentence after the colon is not capitalized. It's definitely not true to say that the word should be capitalized automatically. In British English, it's more common to use lower case letters. American English is quite different.

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