The number one goal of teachers should be to help students learn how to learn.
Find the best in everybody. Just keep waiting no matter how long it takes. No one is all evil. Everybody has a good side, just keep waiting, it will come out.
Time is all you have and you may find one day that you have less than you think.
When you do the right thing, good stuff has a way of happening.
I've always admired people who are over-prepared.
We need to make sure our students are exerting themselves. We need to praise them when they deserve it and to tell them honestly when they have it in them to work harder.