A chivalric code of academic integrity for the young scientist.
Not like the real codes of chivalry but more like what we think they ought to have been like.
A naive commitment to understanding the world. (The more I think about it to be naive is a requirement. To NOT be naive would mean making assumptions, being cynical, experienced.)
That's my suggestion for "from whenst do you derive a morality"
Verify Your Claims
Cite Sources
Do Not Overstate
Admit and Share Your Errors