earn or burn
v. phr.— «Most airlines let you “earn or burn” miles in a variety of ways, such as using a credit card linked to the account or spending money or miles with one of the airline’s retail, restaurant, travel or financial partners.» —“Warnings on frequent-flier miles” by Kathleen Pender San Francisco Chronicle Nov. 18, 2007. (source: Double-Tongued Dictionary)
Further reading
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...
There was a time when William Shakespeare was just another little seven-year-old in school. Classes in his day were demanding — and all in Latin. A new book argues that this rigorous curriculum actually nurtured the creativity that later flourished...