He didn't get all of those injuries from a fall.

The injuries just didn't coincide with an accidental fall.

I've learned from experience that the greater part of our happiness or misery depends on our dispositions and not on our circumstances.

The greater part of our happiness or misery depends on our dispositions and not on our circumstances. We carry the seeds of the one or the other about with us in our minds wherever we go.

I live a very dull life here... indeed I think I am more like a state prisoner than anything else.

I've learned from experience that the greater part of our happiness or misery depends on our dispositions and not on our circumstances.