"Just playing the song without dynamics makes it sound like just the piano is playing, but using dynamics makes it sound like listening to someone play the piano" -- A. Schnepp 
 

"Keep your eyes on the music." -- J. Mills 

 
"It seems tedious at times to sit down and practice for over ten minutes at a time. I like to practice individual exercises for short periods of time. It keeps my concentration up and frustration down." -- J. Brownstein. 
 

"Learn the measure you're working on. Then back up to the measure before it and put them together. Keep doing this until you're at the beginning of the piece." 
-- B. Reith 
 
THE THREE GOLDEN RULES OF PRACTICING -J. Lauckhardt 

1) Practice your scales and exercises as boring as 
they may be, they help in the long run, 

2) Practice in small clumps, no 2 hour straight practices, 
you may go insane. 

3) Don't put practicing off because you will end up not doing it, 
which isn't fun for you or your teacher.