What does "a captive for life" mean in this sentence? This is an extract in a novel which includes the phrase " a captive for life".I haven't yet been clear about its meaning though i have looked it up. Please help me. Thank you very much. "[...] Her greatest charm was her ease with people. She laughed so easily; she listened with so much empathy, patting you on the arm to make a point. After a minute with her, you were a captive for life. [...]".

Should we study different languages at the same time? There are many languages that I want to learn but I don't know whether I should learn them all at the same time or not. Please give me some advice. Thank you. 

Studying Korean I started to learn Korean a few days ago with the Hangul and some words that Korean babies usually speak as i want it's to be a natural process. I wonder if it is a good way to approach it. So,what should I do first when learning Korean?

Which preposition goes after the word "proficient"? In Oxford Dictionary, I see two examples with two prepositions after "proficient". Coula anyone tell me in which case we use each of them? Here are the examples: -"I was proficient at my job." -"she felt reasonably proficient in Italian." Thank you very much.

What does "insofar as" mean? I saw this phrase in this sentence: "Some scientists go so far as to assert that from now on, the world no longer be called 'natural', INSOFAR AS future processes of weather, climate and all the interactions of plant and animal life will no longer carry on in their time-honoured way, unaffected by humans.". I look up in the dictionary but still don't get it. Could anyone please help me to explain that phrase as well as the sentence? Thank you very much.

What is the difference between these two sentences? I am confused with these sentences in my textbook about past simple and present perfect. The first one is: "I've left my wallet in the car. I'm going back to get it." The second one is: "I left my wallet in the car. I'm going back to get it." I don't know what the difference is. Could anyone help me, please? Thank you very much indeed.

"By all means" and "by no means"? I can't tell them apart. Could anyone please show me difference? Thank you very much indeed.

Do you eat to live or live to eat?

Being a girl, I'm also afraid of getting fat, but I can't help eating many kind of food. 

Personally, I'm the kind of person that lives to eat because there are various food out there: Japanese cuisine, Chinese, Korean, Thailand, Indian, Italian, and so on. Food is not only what we eat to nurture our bodies but also what we call "culture" in it. I will be the happiest person in the world If I have chance to try every food of all countries as well as know more about the appetites and the cultures there. 

What about you? 

What do these mean? I hear English speakers usually say "... kind of..." . What does it mean? And by the way, i've looked up the phrase "up to the point" and still don't get it. Could anyone please tell me the meanings of those above?