If you're familiar with a principle you don't have to be familiar with all of its applications.
Henry David ThoreauPerfect alchemists I keep who can transmute substances without end, and thus the corner of my garden is an inexhaustible treasure-chest. Here you can dig, not gold, but the value which gold merely represents; and there is no Signor Blitz about it.
Henry David ThoreauThe flowers of the apple are perhaps the most beautiful of any tree's, so copious and so delicious to both sight and scent.
Henry David Thoreau