Learn English – “You are all {so/such} wonderful friends.” Which is more correct

You catch more flies with honey than vinegar or, sometimes you catch more flies with honey is an English proverb. It doesn't have a counter-intuitive meaning--if you are trying to catch flies, you are literally going to attract more with honey. That is, you're going to get what you want (in the proverb flies, but in life any goal) with sweetness rather than acidity.

This answer explains it similarly:

Flies represents anything you want to achieve. Honey (sweet) represents anything pleasant that you do to get what you want. Vinegar (sour) represents anything unpleasant that you do to get what you want. It tells you to use nice methods rather than unkind methods in dealing with other people.

This is a saying that means: you will be more successful in life being sweeter, or nice rather than being, mean to people, not nice and doing hurtful, dishonest things in life.

This forum makes some guesses at its origins, noting:

The proverb has been traced back to G. Torriano's 'Common Place of Italian Proverbs' . It first appeared in the United States in Benjamin Franklin's 'Poor Richard's Almanac' in 1744, and is found in varying forms..." From "Random House Dictionary of Popular Proverbs and Sayings" by Gregory Y. Titelman (Random House, New York, 1996).

Pronunciation isn't my strongest point _ __ _ I've decided to improve it. I've borrowed some Spanish DVDs from the library, with the _ __ _ of listening to native speakers and trying to copy them.

The first gap (in my version) would require so or ,so or ;therefore . Given the comma, 'therefore' is ungrammatical as it never follows a comma.

The second gap could certainly be filled by intention. 'I've borrowed some Spanish DVDs from the library, with the intention of listening to native speakers and trying to copy them.' is a paraphrase of the more colloquial 'I've borrowed some Spanish DVDs from the library. I thought I'd listen to some native speakers and try to copy them.'

It could also be filled by purpose. However, construction-wise, 'for the purpose of' is more idiomatic than 'with the purpose of'. And semantically (and this is probably why the preferred choice of preposition is as it is), there is more of a flavour of the ultimate achievement than need be present with 'with the intention of' and certainly 'I thought I'd'. This doesn't sit too well just before 'listening to'. 'For the purpose of' would sit better with 'really getting to grips with idiomatic Spanish' (Aim, less 'ultimate achievement'-flavoured would sit happily with both 'listening' (ie the strategy employed) and proficiency (ie 'copying' – speaking like – 'the native speakers': the ultimate achievement)).