TASK DEFINITION: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
PROBLEM: Consider this quote from Mark Twain: 'Familiarity breeds contempt - and children.' Does it mean having children is a bad thing? Could you explain what the children imply here?.

SOLUTION: Two thoughts are run together: Familiarity breeds contempt {knowing people very well lets you see their faults} Familiarity breeds children {physical familiarity between the sexes leads to children} Hence Familiarity breeds contempt and children. A similar example of this particular way of playing with words (called Zeugma) is: 'You are free to execute your laws, and your citizens, as you see fit.'

PROBLEM: If a possessive noun, which is plural, is preceded by 'each', then should it use the singular or plural possessive form? For example, which of the following is correct? spend time in each other's presence spend time in each others' presence.

SOLUTION: Each other is singular, so the correct possessive is each other's. Edit: I found some controversy on this on the web because each other implies that there are multiple people involved, hence people think it is plural and should be written each others'. This, however, is wrong as each is always singular.

PROBLEM: What is the difference between 'Did you find?' and 'Have you found?' When should I use the first sentence, and when the second one?.

SOLUTION:
Did you find is the simple past and indicates that you are no longer looking for it. Have you found is the present perfect and indicates a link with the present, specifically, that you could still be looking for it.