You don't need to be an expert in order to achieve satisfactory investment returns. But if you aren't, you must recognize your limitations and follow a course certain to work reasonably well. Keep things simple and don't swing for the fences.
At six o'clock we cleaned our cells,
At seven all was still,
But the sough and swing of a mighty wing
The prison seemed to fill,
For the Lord of Death with icy breath
Had entered in to kill.
Our First Amendment expresses a far different calculus for regulating speech than for regulating nonexpressive conduct and that is as it should be. The right to swing your fist should end at the tip of my nose, but your right to express your ideas should not necessarily end at the lobes of my ears.