The secret of getting ahead is getting started.
Problems are not stop signs, they are guidelines.
Things do not happen. Things are made to happen.
Without hard work, nothing grows but weeds.
To be a good loser is to learn how to win.
Never complain and never explain.
Know or listen to those who know.
You never know what motivates you.
Quality is not an act, it is a habit.
Begin to be now what you will be hereafter.
I spent every night until four in the morning on my dissertation, until I came to the point when I could not write another word, not even the next letter. I went to bed. Eight o'clock the next morning I was up writing again.