[seanstickle]

APL: Errors increase in proportion to the amount of code typed; therefore, decrease amount of code typed while keeping expressiveness and power unchanged.

Alternatively:

APL: Programming should be more like math.

[gruseom]

I noticed that the APL one seemed off as well. But I would say:

APL: Other languages are verbose and irregular.

[seanstickle]

K: APL (and J) is too verbose.