Используйте «hard master» в предложении

1. Panic, while a hard master, could not drive rapidly tiring animals forever

2. She watched his countenance as if she were particularly wishful to be assured that he took kindly to his reception, she showed every possible desire to conciliate him, and there was an air of humble propitiation in all she did, such as I have seen pervade the bearing of a child towards a hard master