An enlightened person has increased perspicuity, which just means clarity of vision, as opposed to blurriness or blindness.

开悟之人有高的洞察力，这意味着视野清晰，而不是模糊或失明。

In point of perspicuity, precision, and distinctness, therefore, the duties of customs are much inferior to those of excise.

因，就明确性、精确性和明确性而言，关税远不如消费税。

Joe recited this couplet with such manifest pride and careful perspicuity, that I asked him if he had made it himself.

了这张对联，表现出如明显的骄傲和细心的敏锐，我问他是不是自己做的。