This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
O, could I give thee India's wealth,
As I this trifle send!
Because thy joy in both would be
To share them with a friend.
But golden sands did never grace
The Heliconian stream;
Then take what gold could never buy—
An honest Bard's esteem.