The Very First Lesson:
No Killing!
The Blessed Buddha often nailed down the crucial
necessity of Harmlessness:
One should never
ever kill any living being whatsoever,
nor ever cause it to be killed,
harmed,
or injured,
nor should anyone ever incite any others
to kill!
Do never injure any being, whether strong
or weak, in this entire cosmic universe!
Sutta Nipāta 2.396
Back-2-Basics #1
=
Never Kill!

https://vimeo.com/53853543
About
Harmlessness (Ahimsā):
Harmlessness_and_Tolerance,
Patient_is_Tolerance,
Not_Killing,
Bon_Benevolence,
Kamma_leading_to_short_&_long_life,
Blessing_all_Beings_by_Bliss,
May_all_be_Happy,
Optimal_Observance_I