The quotation argues that direct observation can provide knowledge that numerous second-hand reports may fail to convey. In the episode Patton describes, officers were studying maps and reports to determine whether a river could be crossed, while he had personally inspected and crossed it. His point is not that written information has no value, but that important assumptions should sometimes be tested against conditions on the ground.

The central issue is therefore epistemological: how people establish what is true and what evidence they should trust when making decisions. First-hand observation can reveal details, correct mistaken assumptions and expose gaps in indirect information. In its military setting, the lesson concerns reconnaissance and command, but the principle extends more broadly to situations where decisions depend on uncertain or incomplete reports. The quotation favours direct verification when it is practical and when the consequences of relying on untested information are significant.

Full quotation

“I asked them why they had not crossed the Sienne. They told me they were making a study of it at the moment, but could not find a place where it could be forded. I asked what effort they had made to find such a place and was informed that they were studying the map to that end. I then told them I had just waded across it, that it was not over two feet deep, and that the only defense I knew about was one machine gun which had fired very inaccurately at me. I repeated the Japanese proverb: "One look is worth one hundred reports," and asked them why in hell they had not gone down to the river personally. They learned the lesson and from then on were a very great division.”