"That she should be tired now, however, gives me no surprise; for there is nothing in the course of one's duties so fatiguing as what we have been doing this morning: seeing a great house, dawdling from one room to another, straining one's eyes and one's attention, hearing what one does not understand, admiring what one does not care for. 
"I am not surprised that she is tired now; for there is nothing so fatiguing as seeing a great house, dawdling from one room to another, straining one's eyes and one's attention, hearing what one does not understand, admiring what one does not care for. 