Knowledge is all well and good, but it's the willingness and ability to share it, that turns knowledge into something worthwhile; that's why teaching and mentorship is such a vital part of society.......my life has been immeasurably enriched by the generosity of knowledgeable teachers and mentors; yes, I have met the odd, propietorial "me-me-me" type, but, on the whole, most with genuine skill and depth of experience have been more than delighted to fully share and support, knowing their experience knowledge will be respected and made best use of.