Empathize the well-being of all living creatures. Not just people. Freedom from suffering is the right of all sentient beings.
Kill only in self-defense and when all preventative measures and alternatives have been considered and exhausted. Death should always be instantaneous and humane.
The kindness one does for an animal may not change the world... but it will change the world for that one animal. Let's make our human existence truly special by giving meaning to what humanity truly is.
"We (humans) alone on earth have evolved to the extraordinary point where we can understand the selfish genes that shaped us. They are not models (examples) for how to behave, but (rather) the opposite (how not to behave). Because we are conscious of these forces, we can work towards taming them through kindness and morality... we can overthrow the tyranny of natural selection. Our evolved brains (unlike animals) empower us to rebel against our selfish genes (instead of accepting cruelty as something "natural")." ― Professor Richard Dawkins, Evolutionary Biologist, from the 'Fifth Ape' documentary