I love the whole song, but especially the last verse:
Then let us pray that come it may
(As come it will for a' that)
That Sense and Worth o'er a' the earth
Shall bear the gree an' a' that!
For a' that, an' a' that,
It's comin yet for a' that,
That man to man the world o'er
Shall brothers be for a' that.
~so be it:)