It's always too early to quit.
Things do not happen. Things are made to happen.
If you're going through hell, keep going.
After a storm comes a calm.
Expect problems and eat them for breakfast.
You never know what motivates you.
The most effective way to do it, is to do it.
Always desire to learn something useful.
Quality is not an act, it is a habit.
Never complain and never explain.
People who have time on their hands will inevitably waste the time of people who have work to do.