1) love is very important and we should love every one
every one is equal, no matter illness or healthy person, every one deserves happiness, so we should spread love to every one in the world.
2) patient
she is so patient to help the sick or injured soldiers
3) strong and tough
she must be very tough and strong to save the injured or nearly dead soldiers as the condition she lived was poor as the war was broken out.
4) strong determination
Even when she felt tired, she never gave up. It means she must have a strong determination, or how can she support a long time?