Quality is not an act, it is a habit.
I can, therefore I am.
If you're going through hell, keep going.
Be gentle to all and stern with yourself.
You never know what motivates you.
Who seeks shall find.
Either you run the day or the day runs you.
If you've got a talent, protect it.
It's always too early to quit.
To be a good loser is to learn how to win.
Many who have had an opportunity of knowing any more about mathematics confuse it with arithmetic, and consider it an arid science. In reality, however, it is a science which requires a great amount of imagination.