"But yet as it is best, if we wish to understand the nature of plants or of men, to consider how they may by degrees proceed from seeds, rather than how they were created by God in the beginning of the world, so, if we can excogitate some extremely simple and comprehensible principles, out of which, as if they were seeds, we can prove that stars, and earth and all this visible scene could have originated, although we know full well that they never did originate in such a way, we shall in that way expound their nature far better than if we merely described them as they exist at present."
They therefore elect elders, who expound the Scriptures, baptize and hear confessions.
He was never instituted or inducted to the living of Leyton, but in 1674 he was licensed by the bishop of London to preach and expound the word of God, and to perform the full office of priest and curate while it was vacant, and until his death he received the profits of it.
About this work he said little in the Autobiography, probably because his main concern there was to expound the influences that effected his moral and mental development.
In philosophy his chief work was to systematize and expound the utilitarianism of his father and Bentham (see Utilitarianism).