If you think you can do it, you can.
If you're going through hell, keep going.
Without hard work, nothing grows but weeds.
To be a good loser is to learn how to win.
Know or listen to those who know.
Either you run the day or the day runs you.
Do not weep do not wax indignant. Understand.
To know oneself, one should assert oneself.
Wherever you are - be all there.
Always desire to learn something useful.
I think it is most important for a teacher to play the pieces and studies that are being played by the student.