But cool and candid people will at once reflect, that the purest of human blessings must have a portion of alloy in them, that the choice must always be made, if not of the lesser evil, at least the GREATER, not the PERFECT good; and that in every political institution, a power to advance the public happiness, involves a discretion which may be misapplied and abused.
James Madison in Federalist No. 41
Jnana's Red Barn 