Never complain and never explain.
The most effective way to do it, is to do it.
Things do not happen. Things are made to happen.
It's always too early to quit.
Expect problems and eat them for breakfast.
I can, therefore I am.
What you do today can improve all your tomorrows.
Be gentle to all and stern with yourself.
Without hard work, nothing grows but weeds.
The wise does at once what the fool does at last.
Doubt is an uneasy and dissatisfied state from which we struggle to free ourselves and pass into the state of belief while the latter is a calm and satisfactory state which we do not wish to avoid, or to change to a belief in anything else.