But her courage and daring in passing beyond her own depth and that of the floundering little swimmers around her, in their minds outweighed all errors of judgment.

Children are not better than grown people in this respect, I fancy; and whenever the little red hand flashed above her desk, there was a wondering silence, and even the master was sometimes oppressed with a doubt of his own experience and judgment.
Nevertheless, certain attributes which at first amused and entertained his fancy began to afflict him with grave doubts.

He could not but see that Mliss was revengeful, irreverent, and willful.

That there was but one better quality which pertained to her semisavage disposition--the faculty of physical fortitude and self-sacrifice, and another, though not always an attribute of the noble savage--Truth.

Mliss was both fearless and sincere; perhaps in such a character the adjectives were synonymous.
The master had been doing some hard thinking on this subject, and had arrived at that conclusion quite common to all who think sincerely, that he was generally the slave of his own prejudices, when he determined to call on the Rev.McSnagley for advice.