Non-injury to all sentient beings is the only religion. - Yogashastra (first truth of Jainism)

In happiness and suffering, in joy and grief, we should regard all creatures as we regard our own self, and should therefore refrain from inflicting upon others such injury as would appear undesirable to us if inflicted upon ourselves. - Mahavira, Yogashastra

Mercy to sentient beings, self restraint, truth, honesty, chastity and contentment, right faith and knowledge, and austerity are but the entourage of morality. - Mahavira, Sila-prabhrita

He who harms animals has not understood or renounced deeds of sin...Those whose minds are at peace and who are free from passions do not desire to live at the expense of others. - Mahavira, Acharanga Sutra

All beings hate pains; therefore one should not kill them. This is the quintessence of wisdom: not to kill anything. - Mahavira, Sutrakritanga

All breathing, existing, sentient creatures should not be slain, nor treated with violence, nor abused, nor tormented, nor driven away. This is the pure unchangeable Law. Therefore, cease to injure sentient beings. - Mahavira, Yogashastra

Flesh can not be procured without causing destruction of life; one who uses flesh, therefore, commits hisma (injury) unavoidably - Mahavira

Unless we live with non-violence and reverence for all sentient beings in our hearts, all our humaneness and acts of goodness, all our vows, virtues, and knowledge, all our practices to give up greed and acquisitiveness are meaningless and useless. - Mahavira

One who harms animals, directly or indirectly, has not understood deeds of sin...those whose minds are at peace and who are free from passions do not desire to live at the expense of others. - Mahavira

Non-violence and kindness to sentient beings is kindness to oneself. For thereby one's own self is saved from various kinds of sins and resultant sufferings and is able to secure his own welfare. - Mahavira

Non-injury to sentient beings is the highest religion. - Mahavira