Burn the midnight oil
Meaning
To work or study diligently late into the night.
Origin
Before the advent of electric light, the only way to extend the workday or study session into the deep hours of the night was by the flickering glow of an oil lamp. Picture a scholar hunched over ancient texts or an artisan meticulously crafting by the dim, warm light. Each drop of oil consumed was a minute stolen from darkness, a testament to dedication and relentless effort. The "midnight oil" wasn't just fuel; it became a direct symbol of the tireless pursuit of knowledge or completion of tasks, literally burning away the night to achieve a goal.
Examples
- She had to burn the midnight oil for weeks to finish her dissertation before the deadline.
- Many students find themselves burning the midnight oil during exam season to cram for tests.