And truly there goes a great deal of providence to produce a man's life unto threescore; there is more required than an able temper for those years; though the radical humour contain in it sufficient oil for seventy, yet I perceive in some it gives no light past thirty: men assign not all the causes of long life, that write whole books thereof. They that found themselves on the radical balsam, or vital sulphur of the parts, determine not why Abel lived not so long as Adam. There is therefore a secret glome or bottom of our days; it was his wisdom to determine them, but his perpetual and waking providence that fulfils and accomplishes them; wherein the spirits, ourselves, and all the creatures of God in a secret and disputed way do execute His will. Let them not, therefore, complain of immaturity that die about thirty: they fall but like the whole world, whose solid and well-composed substance must not expect the duration and period of its constitution; when all things are completed in it, its age is accomplished; and the last and general fever may as naturally destroy it before six thousand, as me before forty. There is therefore some other hand that twines the thread of life than that of nature; we are not only ignorant in antipathies and occult qualities; our ends are as obscure as our beginnings; the line of our days is drawn by night, and the various effects therein by a pencil that is invisible; wherein, though we confess our ignorance, I am sure we do not err if we say it is the hand of God. ON ANGELS