Misunderstood or not, Machiavelli has been an endless resource for English dramatists.

BBC: 10 of popular culture's best Machiavellian characters

These medicines are neither a magic bullet, nor an endless resource.

BBC: Action on antibiotics

The possibilities are endless from poverty alleviation to affordable housing to natural resource conservation to building needed infrastructure in a city or state.

FORBES: Impact Investing: The Power Of Two Bottom Lines