Vonnegut

Prompt: "If you can do a half-assed job at anything, you're a one-eyed man in a kingdom of the blind"-Kurt Vonnegut 

When Vonnegut says 'one eyed', he does not clarify whether that eye has sight or is blind.

For the latter, Vonnegut is ultimately discrediting the notion of slacking off; it doesn't matter if one can reach the same level of achievement as others by half-assing a job, as long as everyone is successful. In the same sense, since everyone is blind, the number of eyes is considered insignificant.

If, however, the one eye has sight, then it becomes apparent that the beholder of the eye is not skilled enough to complete said task without a shortcut. In this scenario, any sight, be it form one or two eyes, is a considerable advantage to have over the completely blind community. Here, the number of eyes with sight is insignificant as well, for the beholder of sight is the only one with access to vision.

Ultimately, there are two ways of being intelligent: one can either be really good at one thing, or be okay at multiple things. In his quote, Vonnegut is implying that being okay at multiple things may be advantageous; while everyone else has specialized in one thing, they are ultimately blind to the others.