To give a person an opinion one must first judge well whether that person is of the disposition to receive it or not. One must be come close with him and make sure that he continually trusts one’s word. Approaching subjects that are dear to him, seek the best way to speak and to be well understood. Judge the occasion, and determine wether it is better by letter or at the time of leave-taking. Praise his good points and use every device to encourage him, perhaps by talking about one’s own faults without touching on his, but that they will occur to him. Have him receive this in the way that a man would drink water when his throat is dry, and it will be an opinion that will correct faults.