In the arena of human life the honors and rewards fall to those who show their good qualities in action．——Aristotle ，Nicomachean Ethics

A man dies still If he has done nothing ，as one who has done much．——Homer ，Iliad

Man did not weave the web of life, he is merely a strand in it. Whatever he does to the web, he does to himself. -- Chief Seattle

Reviewing the old and deducing the new makes a teacher.