Problems are not stop signs, they are guidelines.
Leap, and the net will appear.
Be thine own palace, or the world's thy jail.
If you can dream it, you can do it.
The most effective way to do it, is to do it.
The secret of getting ahead is getting started.
Be gentle to all and stern with yourself.
If you're going through hell, keep going.
What you do today can improve all your tomorrows.
It's always too early to quit.
Science is wonderfully equipped to answer the question 'How?' but it gets terribly confused when you ask the question 'Why?'