I know of nothing so pleasant to the mind, as the discovery of anything which is at once new and valuable - nothing which so lightens and sweetens toil, as the hopeful pursuit of such discovery. (Abraham Lincoln)

I know of nothing so pleasant to the mind, as the discovery of anything which is at once new and valuable - nothing which so lightens and sweetens toil, as the hopeful pursuit of such discovery.

Abraham Lincoln

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anything discovery hopeful mind nothing once pleasant pursuit toil valuable

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