Thesis Statement about the most influential people in your life

I have to write a thesis statement from this question. Who are the three people who have been the most important influences in your life. This is my thesis statement: The three people who have had the most important influence in my life are my father,my mother and my brother. How can I improve this thesis statement?

You might add some specific details. So, "My father, my mother, and my brother have each influenced me in important ways, by teaching me self-reliance, compassion, and cruelty respectively." You should replace the exact qualities with ones of your own, of course, but this should give you a decent model to work with.

Great idea... and it helps to come up with a single overarching theme if possible -- so that the three aspects are integrated by the essay's common theme. Could the theme be "loyalty," or "optimism," for example?