Stay the course. When thwarted try again; harder; smarter. Persevere relentlessly.
Doing the best you are capable of doing is victory in itself, and less than that is defeat.
It matters not the subject taught, nor all the books on all the shelves, What matters most, yes most of all, is what the teachers are themselves.
It's too late for preparation when opportunity strikes.
I am just a common man who is true to his beliefs.
You can't live a perfect day without doing something for someone who will never be able to repay you.