The preposition "from" is used when referring to the source of a quotation, example, or passage. Therefore, the correct sentence is "Take an...
The preposition "from" is used when referring to the source of a quotation, example, or passage. Therefore, the correct sentence is "Take an example quoted from Galsworthy." Here, "from" indicates that the example has been taken from the writings or works of the famous English novelist and playwright John Galsworthy.