It takes determination and a positive mindset to keep yourself productive in this day and age, to live effectively you must work hard to get a good job, to provide for yourself and your family.
It would be the girls’ dogs since there are multiple owners of the dogs. You keep the girls plural and use the apostrophe at the end to make it girls’ since it is both plural and possessive.
It might be stated that Mill employed a combination of formal and informal tone in "On liberty..", by developing some complex ideas, meanings and expressions. The author used metaphors and figurative languages to appeal to the audience. It might be added that Mill wrote those who agreed with him and he discussed his thesis by attacking the conservatives.
He used frases such as <span> "no one's idea," "no one should assert," "it would be absurd," "nobody denies" . </span>