"Most people are unable to write because they are unable to think, and they are unable to think because they congenitally lack the equipment to do so, just as they congenitally lack the equipment to fly over the moon"

This quote by H. L. Mencken recommends that many people are unable to compose because they are unable to believe. He indicates that this inability to think is due to an absence of the essential devices, just as one would do not have the essential devices to fly over the moon. This recommends that writing is an ability that requires a specific level of psychological capability, which those who lack this capability are not able to compose. Mencken indicates that this absence of capacity is something that is inherent, and can not be obtained through practice or education. He suggests that writing is an ability that is only readily available to those who have the required mental capacity, which those who lack this capability are unable to write. This quote suggests that composing is an ability that requires a specific level of psychological capability, which those who lack this capacity are unable to compose.