By viewing the old we learn the new. Wonder is the desire for knowledge. Good teaching is more a giving of right questions than a giving of right answers.
Education is the best viaticum of old age.
The empires of the future are the empires of the mind. Those who profess to favor freedom and yet deprecate agitation are men who want crops without plowing the ground. Only the mind cannot be sent into exile. What greater or better gift can we offer the republic than to teach and instruct our youth. The basic idea behind teaching is to teach people what they need to know.