I just came across the following quote, especially appropriate during
this week of Passover.
"Let your compassion extend to all creatures, neither despising nor
destroying any of them. For Wisdom spreads over all created things:
mineral, vegetable, animal, and human. Each was created in Wisdom. Do
not uproot anything that grows, unless it is necessary. Do not kill any
living creature, unless it is necessary."
Daniel C. Matt, The Essential Kabbalah: The Heart of Jewish
On a related note, my Alef-Bet Kabalah
is available as an