Congratulation-Envy

Nothing mortal is enduring, and there is nothing sweet which does not presently end in bitterness. (Petrarch)

Where there is no jealousy there is no love. (German Proverb)

Jealousy is the greatest of all evils, and the one which arouses the least pity in the person who causes it. (La Rochefoucauld)

If envy were a fever, all the world would be ill. (Danish Proverb)

Envy is the basis of democracy. (Bertrand Russell)