You never know what motivates you.
By failing to prepare, you are preparing to fail.
Never complain and never explain.
What you do today can improve all your tomorrows.
Well done is better than well said.
Things do not happen. Things are made to happen.
If you're going through hell, keep going.
It's always too early to quit.
Know or listen to those who know.
Always desire to learn something useful.
One of my biggest pet peeves is that I just don't like it when characters do things that are funny to the writer, but you don't know why they're doing it and it doesn't make any sense.