Best advice about music making.

[mcdiddy1]

What do you feel is the best advice you ever received about music making....as far as quotes or just general advice.....my  favorite was by Issac Stern in a playing from the heart likedocumenry ...I cant remeber the name but it goes

Unless you feel that you must live with music..that music can say more than words... that music can mean more...that without music we are not alive...if you don't feel all that ..than don't be a musician

Let me know your favorite!