That could determine action. Herschel knew it;

The power whereby the mind uplifts the hand

And lets it fall, the living personal Will.

Ah, but his task, his endless task on earth,

Bent his head earthward. He must find the way

Before he claimed the heights. No Newton he;

Though men began to acclaim him and his law

As though they solved all mysteries and annulled

All former creeds, and changed the heart of heaven.

No Newton he; not even a Galileo;