It's always too early to quit.
Quality is not an act, it is a habit.
Problems are not stop signs, they are guidelines.
Be thine own palace, or the world's thy jail.
If you're going through hell, keep going.
By failing to prepare, you are preparing to fail.
Things do not happen. Things are made to happen.
Know or listen to those who know.
After a storm comes a calm.
Expect problems and eat them for breakfast.
The attitude is very important. Because, your behavior radiates how you feel.