1. He should be able to teach plainly and in order.
2. He should have a good head.
3. Good power of language.
4. A good voice.
5. A good memory.
6. He should know when to stop.
7. He should be sure of what he means to say.
8. Be ready to stake body and soul, goods and reputation on its truth.
9. He should study diligently.
10. And suffer himself to be vexed and criticized by everyone.