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 wha is she that lo'es me,
And has my heart a-keeping?
O sweet is she that lo'es me,
As dews o' simmer weeping,
In tears the rose-buds steeping.
Chorus.
O that's the lassie o' my heart,
My lassie ever dearer;
O that's the queen o' womankind,
And ne'er a ane to peer her.
If thou shalt meet a lassie,
In grace and beauty charming,
That e'en thy chosen lassie,
Erewhile thy breast sae warming,
Had ne'er sic powers alarming;
O that's, &c.
If thou hadst heard her talking,
And thy attentions plighted,
That ilka body talking,
But her by thee is slighted,
And thou art all delighted;
O that's, &c.
If thou hast met this fair one;
When frae her thou hast parted,
If every other fair one,
But her, thou hast deserted,
And thou art broken-hearted;
O that's, &c.