What is the theme in The Wild Duck by Henrik Ibsen?

ruth and falsehood are major themes in The Wild Duck. Gregers is determined that Hjalmar learn the truth about Gina's past and why Hakon Werle has been so helpful to the family. Hjalmar has lived in blissful ignorance, never questioning why Hakon decided to be of such service to him and his family. He leads a contented life and actively seeks to avoid unpleasantness, as he childishly tells Gregers. Gina protects Hjalmar from unpleasant economic realities, truly catering to all his needs, both his physical and emotional ones.