Either you run the day or the day runs you.
Begin to be now what you will be hereafter.
Never complain and never explain.
Expect problems and eat them for breakfast.
What you do today can improve all your tomorrows.
Only the educated are free.
The dog that trots about finds a bone.
It's always too early to quit.
To know oneself, one should assert oneself.
The most effective way to do it, is to do it.
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.