Then may'st thou see how Nature's work is done,
How slowly true she lays her colours on;
When her least speck upon the hardest flint
Has mark and form and is a living tint,
And so embodied with the rock, that few
Can the small germ upon the substance view[40].
Seeds, to our eye invisible, will find
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On the rude rock the bed that fits their kind;
There, in the rugged soil, they safely dwell,