In Shakespeare's "King Lear," the phrase "Nothing can come of nothing" reflects a core theme of the play, emphasizing the idea that one must invest and give to receive anything meaningful in life. This notion suggests that without effort or contribution, there cannot be any positive outcomes. Lear's journey throughout the narrative illustrates the consequences of valuing empty promises rather than genuine love and loyalty.

This line also highlights the character's struggles and the consequences of misjudgment. As Lear divides his kingdom based on flattery rather than sincerity, he ultimately learns the hard truth that superficiality leads to despair, demonstrating the importance of discernment and the inherent value of authentic relationships.