John Armstrong Quote

What avails it that indulgent Heaven
From mortal eyes has wrapt the woes to come,
If we, ingenious to torment ourselves,
Grow pale at hideous fictions of our own?
Enjoy the present; nor which needless cares
Of what may spring from blind misfortune's womb,
Appal the surest hour that life bestows.
Serence, and master of yourself, prepare
For what may come; and leave the rest to Heaven.

The Art of Preserving Health: a Poem. Price Four Shillings Sewed (ed. 1744)