Everytime we say that god is the author of some phenomenon, that signifies that we are ignorant of how such a phenomenon was caused by the forces of nature.
A man does not wonder at what he sees frequently, even though he be ignorant of the reason. If anything happens which he has not seen before, he calls it a prodigy.
We are merely instruments of the Almighty's will and therefore ignorant of what helps us forward and what acts as an impediment. We must thus rest satisfied with the knowledge only of the means and if these are pure, we can fearlessly leave the end to take care of itself.
Gold in its native state is but dull, unornamental stuff, and only lowborn metals excite the admiration of the ignorant with an ostentatious glitter. However, like the rest of the world, I still go on underrating men of gold and glorifying men of mica.