Be kind whenever possible. It is always possible.
If you can dream it, you can do it.
Be thine own palace, or the world's thy jail.
What you do today can improve all your tomorrows.
Either you run the day or the day runs you.
The dog that trots about finds a bone.
Without hard work, nothing grows but weeds.
It's always too early to quit.
Be gentle to all and stern with yourself.
Never complain and never explain.
Science is wonderfully equipped to answer the question 'How?' but it gets terribly confused when you ask the question 'Why?'