To be a good loser is to learn how to win.
If you're going through hell, keep going.
Who seeks shall find.
Without hard work, nothing grows but weeds.
Do not weep do not wax indignant. Understand.
Only the educated are free.
Expect problems and eat them for breakfast.
Go for it now. The future is promised to no one.
You never know what motivates you.
Either you run the day or the day runs you.
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.