Quote by David Hilbert
A mathematical problem should be difficult in order to entice us, yet not completely inaccessible, lest it mock at our efforts. It should be to us a guide post on the mazy paths to hidden truths, and ultimately a reminder of our pleasure in the successful solution.
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Summary
This quote suggests that a mathematical problem should be challenging enough to engage and intrigue us, but not so difficult that it becomes discouraging. It should serve as a compass, guiding us through complex avenues towards uncovering hidden truths. Ultimately, solving the problem should bring us joy and satisfaction, reminding us of the pleasure derived from successfully overcoming obstacles.