Learned Hand

The most quoted judge in America never made it to the Supreme Court, and he once reduced the whole question of fault to a piece of arithmetic.

For more than forty years Learned Hand wrote opinions on the federal bench in New York that other judges, including the ones above him, quoted for the rest of the century. He never got the promotion he deserved. It did not matter. His reasoning outranked his title.

Three moves.

Move One: The Arithmetic of Fault.

In a small 1947 case about a barge that broke loose, Hand wrote negligence as a comparison. Weigh the burden of preventing the harm against the probability of the harm and how bad it would be. If the cost of prevention was less than the risk it would have prevented, and they did not bear it, that is fault. The steal: in every safety case, do the Hand math out loud for the jury. What would it have cost to prevent this, a cheap guard, a few minutes of inspection, one more person on the shift, against how likely and how catastrophic the harm was. When the fix was small and the danger was large, the arithmetic argues itself.

Move Two: Show the Reasoning.

Hand did not announce conclusions. He worked the problem in front of you, step by step, in plain words, until the answer felt inevitable. The steal: do not just assert that you are right. Walk the judge and the jury through the logic the way Hand did, one link at a time. People trust the conclusion they watched you reach far more than the one you handed them.

Move Three: The Humility to Doubt.

In 1944, to a crowd of new citizens, Hand said the spirit of liberty is the spirit which is not too sure that it is right. Coming from the most respected judge in the country, the willingness to doubt his own certainty was not weakness. It was the source of the authority. The steal: concede the genuinely hard question. The advocate who admits what is truly uncertain is believed on everything he says is certain.

A Warning from the Film.

The formula is a tool, not a god. A human life does not reduce to a number in an equation, and a jury knows it. Use the arithmetic to show the defendant cheaped out on safety, never to shrink your client to a line in a cost-benefit table. The math proves the choice. Your client is not the math.

The Drill.

Write the Hand formula for your current case in one sentence: the cost of preventing this was small, the risk was serious, and they chose to spend nothing. If that sentence comes out lopsided, the lopsidedness is your closing argument.

United States v. Carroll Towing Co., 159 F.2d 169 (2d Cir. 1947). Read the opinion.