Winston Churchill
Thomas Jefferson
Founding father and President of the United States of America.
Ernest Hemingway
Twentieth century American author.
Napoleon Bonaparte
Military leader and first emperor of France.
Charles Dickens
Nineteenth century English writer and critic.
Vladimir Nabokov
Twentieth century Russian-America author.
Virginia Woolf
Twentieth century English author.
Leonardo Da Vinci
Italian Renaissance artist, inventor and polymath.
Oscar Hammerstein II
American theatre producer and songwriter.
This is a fairly impressive list of writers, artists and leaders. If you try standing up to work and are faced with detractors, just say that if it's good enough for these people, then it's good enough for you.
Note: there is no need to list everyone in chronological order (no one like a know-it-all).