Ye are the light of the world. A city that is set on an hill cannot be hid. Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house. Let your light so shine before men, that they may see your good works and glorify your Father which is in heaven.

-Bible (NewTestament)
St Matthew 5:14^16.

If a man bring to London an ounce of Silver out of the Earth in Peru in the same time that he can produce a bushel of Corn, then one isthe natural price of the other.

-Petty, Sir William
  Treatise ofTaxes.