The idiom "children should be seen and not heard" conveys the traditional expectation that children should be quiet and well-behaved in social situations, emphasizing their role as observers rather than active participants in adult conversations or affairs.

"He and I" is always correct when used as the subject. Whether your sentence is "He and I went to the library" or "The cake was shared between he and I," they're both the doers of the action, so subject pronouns is the grammatically correct choice.

What is the abbreviation of assignment? Asgmt. is a common abbreviation for assignment. Others include assgt. and assign.

What is the abbreviation for office? Office is commonly abbreviated as "off." An office is a designated space or room used for professional or administrative work, typically equipped with furniture, equipment, and facilities to facilitate organizational tasks and operations.

What is the difference between affirmation and confirmation? Affirmation is the positive assertion of beliefs or commitment. Confirmation is the act of verifying or validating information.

Both "counselling" and "counseling" are correct – it all depends where you find yourself. "Counselling" is used in British English, while "counseling" is used in American English.