Ah, it was the "hard/strong" that was giving me fits. Is this it?

RAB'S LAST WOOLLEN TESTAMENT
By Robin Williamson

When I was a little boy, I used to take the time
To go and see old Rab McPhee down by the railway line.
He was getting on in years then you know,
And very fond of a drop of mountain whisky, and didn't he tell me so!
He was always full of a good story, and he'd a nose like a weathervane.
He was never exactly drunk, but then he was never exactly sober anyway,
And I often remember these words he used to say:

Water is the strong stuff; it carries whales and ships,
But water is the wrong stuff; don't let it get past your lips.
It rots your boots; it wets your suits, puts aches in all your bones.
Dilute the stuff with whiskey, aye, or leave it well alone.

CHORUS:
Whisky pure,
O whisky, you're
A charmer,
Drunk or sober.

Spare yourself contortions with a drop of barley wine,
A sensible precaution to counteract the times.
Brandy and rum are dandy for some, wherever they might be sold,
But a drop of mountain whisky isn't it worth its weight in gold?

Whisky, Nancy Whisky, you're as sweet as the dew.
I'm lonesome, my darling, since parting with you.
Kiss me when you're with me, be easy and free,
And I'll throw away the bottle and take you with me.

(If it's the correct one let me know and I'll send an e mail.....or someone else can.....)