"Comparing oneself to others in such terms as "Just as I am so are they, just as they are so am I," he should neither kill nor cause others to kill."
Sutta Nipata 705
"The bodhisattva should adopt the same attitude towards all beings, his mind should be even towards all beings, he should not handle others with an uneven mind, but with a mind which is friendly, well-disposed, helpful, free from aversions avoiding harm and hurts, he should handle others as if they were his mother, father, son, or daughter. As a savior of all beings should a bodhisattva behave towards all beings. So should he train him- self if he wants to know full enlightenment."
Perfection of Wisdom in Eight Thousand Lines 321-22
"One who, while himself seeking happiness, oppresses with violence other beings who also desire happiness, will not attain happiness hereafter."