They possess an insatiable curiosity

1) They have something to say.

(2) They read widely and have done so since childhood.

(3) They possess what Isaac Asimov calls a “capacity for clear thought,” able to go from point to point in an orderly sequence, an A to Z approach.

(4) They’re geniuses at putting their emotions into words.

(5) They possess an insatiable curiosity, constantly asking Why and How.

JAMES J. KILPATRICK, 5 Common Traits of Good Writers