A vision without a task is but a dream.
A task without vision is but drudgery.
A vision with a task is the hope of the world.

The task of definitely sourcing this quote is thus far but a vision. It is most commonly not attributed to Craik or to any author, but is cited as having been inscribed on a wall, on a window, or on a plaque, in a chapel, or town church, or cathedral somewhere in Sussex, England (or sometimes Surrey) most commonly with a date of 1730, but sometimes dated as early as c. 1640, or as late as 1886. It has also sometimes been cited as having been inscribed on an anonymous gravestone in Sussex. The attribution of this to Craik has only seldom occurred and might have begun with its posting in proximity to quotes by her in some internet quote collections.

A vision without a task is but a dream, A task without a vision is drudgery, But a vision and a task — that is the hope of the world. | A vision without a task is but a dream. A task without vision is but drudgery. A vision and a task are the hope of the world.