THANK goodness for people like Ian Miller. Miller, 60, is a straightforward, hard-working organic farmer who restores my faith in life and the future of Scottish food and agriculture. After 44 years in farming, he's also got a keen business head on his broad shoulders. This helps explain how he can now boast - not that this is his style - about opening Scotland's first on-farm organic centre, which has been funded in part by the Scottish Executive.