Given a text, write a compressed version of it in a single sentence.
Q: Nationalism becomes a virtue if it avoids hatred of outsiders as it encourages mutual respect among insiders. This, indeed, was Lincoln's ambition in seeking reconciliation in the Gettysburg Address and in his second inaugural address.
A:
Nationalism becomes a virtue if it avoids hatred of outsiders as it encourages mutual respect among insiders. This was Lincoln's ambition.