It's always too early to quit.
If you think you can do it, you can.
Without hard work, nothing grows but weeds.
If you're going through hell, keep going.
By failing to prepare, you are preparing to fail.
Either you run the day or the day runs you.
Problems are not stop signs, they are guidelines.
What you do today can improve all your tomorrows.
Quality is not an act, it is a habit.
Never complain and never explain.
Don't write anything you can phone. Don't phone anything you can talk. Don't talk anything you can whisper. Don't whisper anything you can smile. Don't smile anything you can nod. Don't nod anything you can wink.