Every judgment teeters on the brink of error. To claim absolute knowledge is to become monstrous. Knowledge is an unending adventure at the edge of uncertainty.

Time is a measure of space, just as a range-finder is a measure of space, but measuring locks us into the place we measure.

Any road followed precisely to its end leads precisely nowhere.

The mind can go either direction under stress—toward positive or toward negative: on or off. Think of it as a spectrum whose extremes are unconsciousness at the negative end and hyperconsciousness at the positive end. The way the mind will lean under stress is strongly influenced by training.

It is impossible to live in the past, difficult to live in the present and a waste to live in the future.

Police are inevitably corrupted. ... Police always observe that criminals prosper. It takes a pretty dull policeman to miss the fact that the position of authority is the most prosperous criminal position available.

Killing with the point lacks artistry, but don't let that hold your hand when the opening presents itself.