In the movie Harold and Maude, Harold is a young boy out of place in the world. He is obsessed with death and grief. Maude comes along and teaches him how to live his life and discover his true individuality. She adopts Harold and tries to bring him out of his depression and put him back into the world as a person. Maude's obsession with life and Harold's obsession with death makes an interesting movie with an even more interesting moral. In the Greenhouse scene, Maude is describing what type of flower she would like to be. She chooses the sunflower, due to its tallness and simplicity. She then to Harold and asks him what type of flower he would like to be. Harold then gestures to a field of seemingly similar Daisies. Maude asks why and Harold answers, "Because they're all alike". Maude then reacts emotionally saying "Oh, but they're not!" She explains to Harold that even though that these flowers seem alike they aren't. She describes that each flower is different in its own individual and special way.
She is trying to teach Harold to realize the individuality in everything, even if they appear alike because nothing is ever alike, Maude also wants Harold to see the individuality within himself and be able to respect it no matter what society wants him to be or become.
Maude continues to explain to Harold that people who look like this, referring to the individual Daisy in her hand, but allow themselves to be treated as that, referring to a seemingly similar field of Daises. What Maude tries to tell Harold is that he, like the daisy, is an individual. So he shouldn't be treated or want to be treated like the similarly seeming daises. As the next frame shows a graveyard in which all the tombstones are exactly alike, even though the people represented by them aren't. Yet, they are buried as if they were all the same, as the field of Daises. Harold's mother in this movie represents society, her being a wealthy socialite herself, and...