Be gentle to all and stern with yourself.
Leap, and the net will appear.
Expect problems and eat them for breakfast.
If you've got a talent, protect it.
What you do today can improve all your tomorrows.
By failing to prepare, you are preparing to fail.
If you think you can do it, you can.
The wise does at once what the fool does at last.
You never know what motivates you.
It's always too early to quit.
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.