This is today's top ten. Nothing especially original, I know, but that's perhaps not necessarily a bad thing:
Thou shalt write every day.
For every hour thou writest, thou shall read an
Thou shalt not edit until thy first draft be
Then thou shalt edit.
And thou shall edit again until thy work be
Thou shalt see thy work for its imperfections
and its possibilities.
Thou shalt not kid thyself.
Thou shalt take thy family and friends’ kind
words as nought but well-meant platitudes.
Thou shalt not covet thy neighbour’s work.
10. Thou shalt submit to appropriate markets.