Authors:

Speech is as a pump, by which we raise and pour out the water from the great lake of Thought,--whither it flows back again.

John Sterling (1848). “Essays and Tales: Fragments from the travels of Theodore Elbert. Thoughts. Tales and apologues”, p.155
Speech is as a pump, by which we raise and pour out the water from the great lake of Thought,--whither it flows back again.