Read it through once

If Jo had only known what a great happiness was wavering in the balance for one of them, she would have turned dovelike in a minute; but, unfortunately, we don't have windows in our breasts, and cannot see what goes on in the minds of our friends; better for us that we cannot as a general thing, but now and then it would be such a comfort, such a saving of time and temper. By her next speech, Jo deprived herself of several years of pleasure, and received a timely lesson in the art of holding her tongue.