"3. Avoid charlatanism and the kind of advertisement that will bring you notoriety at the sacrifice of your self-respect and the respect of your best friends. Remember that real worth is, after all, the thing that brings enduring fame.
"4. Study the public. Seek to find out what pleases it, but never lower the standards of your art. Read the best literature. Study pictures. Travel. Broaden your mind. Acquire general culture.
"5. Be careful of your stage deportment. Endeavor to do nothing at the keyboard that will emphasize any personal eccentricity. Always be sincere and true to your own nature, but within these limits try to make a pleasing impression.
"6. Always be your own severest critic. Be not easily satisfied with yourself. Hitch your wagon to a star. Let your standard of perfection be the very highest. Always strive to reach that standard. Never play in public a piece that you have not thoroughly mastered. There is nothing more valuable than public confidence. Once secured, it is the greatest asset an artist can possess.
"I have repeatedly been asked to give ten rules for practice.
"It is not possible to formulate ten all-comprehensive rules that could be applied in every case, but the following suggestions will be found valuable to many students:
"1. Concentrate during every second of your practice. To concentrate means to bring all your thinking powers to bear upon one central point with the greatest possible intensity. Without such concentration nothing can be accomplished during the practice period. One hour of concentrated thinking is worth weeks of thoughtless practice. It is safe to say that years are being wasted by students in this country who fail to get the most out of their practice because they do not know how to concentrate. A famous thinker has said: 'The evidence of superior genius is the power of intellectual concentration.'
"2. Divide your practice time into periods of not more than two hours. You will find it impossible to concentrate properly if you attempt to practice more than two hours at a time. Do not have an arbitrary program of practice work, for this course is liable to make your work monotonous. For one who practices four hours (and that is enough for almost any student), one hour for purely technical work, one hour for Bach, and two hours for pieces is to be recommended.
"3. In commencing your practice, play over your piece once or twice before beginning to memorize. Then, after working through the entire composition, pick out the more difficult passages for special attention and reiteration.
"4. Always practice slowly at first. This is simply another way of telling the pupil to concentrate. Even after you have played your piece at the required speed and with reasonable confidence that it is correct, never fail to go back now and then and play it at the speed at which you learned it. This is a practice which many virtuosos follow. Pieces that they have played time and time again before enthusiastic audiences are re-studied by playing them very slowly. This is the only real way to undo mistakes that are bound to creep into one's performance when pieces are constantly played in a rapid tempo.