This was taken from the just released issue of The Stamford Review: Housing & The Credit Crisis , a terrific 2x annual publication by Lawrence Sicular. I wrote two articles  for the publication three years ago.
One of the pages had a fun list of the Ten Commandments for 21st Century Real Estate Finance sourced to the Counselors of Real Estate  Ethics Committee Panelists in October 2008.
Ten Commandments  for 21st Century Real Estate Finance
I. Write upon thy heart the law that ‘reward’ and ‘risk’ shalt always appear in the same sentence.
II. Make neither markets nor regulators into idols, and follow not false prophets of simplistic bias.
III. Be sober and watchful, lest the enemy of massive loss approach like a thief in the night.
IV. Honor thy father and thy mother’s ancient counsel; keep it simple, stupid!
V. If thou wilt not do thy own credit analysis, then vow to invest not at all.
VI. Thou shalt not adulterate thy portfolio with excessive leverage.
VII. Thou shalt not bear the false witness of hidden assumptions in thy investment underwriting.
VIII. Thou shalt not covet for the short term, yea, but shalt lay up thy treasures for length of days.
IX. In all things, yield not to the tempter’s snare of panic.
X. Remember that, after thy exile in the wilderness, if thou heedest these commandments, thou shalt once again return to the land of milk and honey.