"If I find a person unwilling to hear what I have to say, I tell that person directly, 'I am incapable of fatigue, my good friend, I am never tired, and I mean to go on until I have done.' 
"If I find a person unwilling to hear what I have to say, I tell them directly, 'I am incapable of fatigue, my good friend, I am never tired, and I mean to go on until I have done.' 