David Maister is a consultant and author of many books on the management of professional service firms.
On Maister's website, he writes this article saying "My next book will be made up of maxims, aphorisms and anecdotes to provide advice to a young professional on how to succeed in professional life. This article contains a random selection... "
Article at: http://www.davidmaister.com/ArticlesBy.asp?fldStoreGUID={8BC21CE2-4B57-4FC0-99D5-288EFCAD72FC}&fldProdID=20912&intCatID=122&intPageNumber=1
There's another article that may be of interest:
Maister's Laws of the Job Search (1982)
He wrote 34 tips for a group of MBA students who came to him with questions about career choices.
Article at: http://www.davidmaister.com/ArticlesBy.asp?fldStoreGUID={8BC21CE2-4B57-4FC0-99D5-288EFCAD72FC}&fldProdID=20359&intCatID=122&intPageNumber=2