to start; to begin; to commence; to initiate; to originate ; to start up (a business, society, etc.); to open (e.g. a store); to establish ; to start ...; to begin to ...
to one's heart's content; as much as one wants; as hard as one can; with all one's strength; to the best of one's ability; to the utmost; with determination; hard; heavily ; resolution; decisiveness; determination; resignation