SUMMARY.
1. A person without a brain or nerves would be of no more account than a vegetable.
2. When the brain or nerves are sick they cannot perform their duties properly.
3. To keep the brain and nerves in good health, we must take good care of the stomach and all other important organs of the body.
4. There are many things which we may do to keep the brain and nerves strong and well.
5. The brain needs pure blood, and so we must be careful to breathe pure air.
6. The brain gets strength by exercise, just as the muscles do. Hence, study is healthful, and makes the brain strong.
7. A good memory is very necessary, but we should not try to remember everything.
8. It is very important that we learn how to observe things closely.
9. Exercise in the open air rests and clears the brain by helping the blood to circulate.