hitch your wagon to a star make use of powers higher than your own.
☞ This phrase was used by the American philosopher and poet Ralph Waldo Emerson in 1870 in the context of idealistic aspiration; modern usage generally has the more cynical implication of attaching yourself to someone successful or famous in order to profit from the association.
2003The Hindu There always have been, and always will be students who dream big and then work hard to hitch their wagon to a star.