Food for thought
Meaning
Something that provides material for serious consideration, reflection, or discussion.
Origin
The human need for sustenance has long provided a rich metaphorical wellspring, and by the late 17th century, English writers began to explicitly extend this concept to the mind. The earliest known appearance of "food for thought" in print comes from John Norris's 1693 "Essay Concerning the Nature and Immortality of the Soul." Norris was grappling with profound philosophical questions, and he found the perfect metaphor in the idea of intellectual nourishment—just as the body needs food to thrive, the mind requires stimulating ideas to grow and develop. This elegant phrase quickly resonated, encapsulating the act of deep contemplation as a form of mental sustenance.
Examples
- The professor's lecture on artificial intelligence gave us all plenty of food for thought regarding the future of work.
- Her unexpected suggestion offered some interesting food for thought as we planned our next steps.