Never complain and never explain.
I can, therefore I am.
Be gentle to all and stern with yourself.
The most effective way to do it, is to do it.
After a storm comes a calm.
It's always too early to quit.
Things do not happen. Things are made to happen.
By failing to prepare, you are preparing to fail.
Know or listen to those who know.
To be a good loser is to learn how to win.
Science is wonderfully equipped to answer the question 'How?' but it gets terribly confused when you ask the question 'Why?'