Careful and persistent work or effort; steady, earnest, and energetic application to an undertaking.
From Latin diligentia, from diligere (to love, esteem highly), literally 'to choose apart' (dis- + legere). Originally meant 'careful selection' or 'attention to detail', evolving to encompass persistent effort by 14th century in English.
The beautiful etymology reveals that diligence originally meant 'to love carefully' - suggesting that true diligence comes not from mere duty but from genuine care and attention. This explains why forced diligence feels hollow while voluntary diligence feels sustainable and meaningful.
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