What does the smile and frown on the Lincoln Memorial mean?

The smile and frown on the Lincoln Memorial's statue of Abraham Lincoln symbolize the duality of his legacy. The smile represents his role in promoting unity and freedom, particularly through the Emancipation Proclamation, while the frown reflects the struggles and complexities of his leadership during a turbulent time in American history. Together, these expressions encapsulate the profound impact Lincoln had on the nation, embodying both hope and the weight of his challenges.