Quotations about functional syllabus and analysis of that quotations?

John Brown said, "I never read a line I liked more than 'Whether thou goest, Iwill go'."

Use a different type of quotation marks to the one you are already using. For example, you would say, "And then the Lord said, 'Let there be light.' and there was light". Or, If you preferred, 'And...

The social environment (context), also known as the milieu, is the identical or similar social positions and social roles as a whole that influence the individuals of a group. The social environment...

Never. You should always have quotation marks sorrounding a quote.

No. If the punctuation mark is used in the quotation it remains in the quotation. Punctuation marks always go inside the quotation if the quotation ends the sentence.