The fundamental principles of Jainism revolve around the concept of altruism, not only for humans but for all sentient beings. Jainism preaches the view of "Ahimsa" – to live and let live, thereby not harming sentient beings, i.e. uncompromising reverence for all life. It also considers all living things to be equal. The first Tirthankara, Rishabhdev, introduced the concept of altruism for all living beings, from extending knowledge and experience to others to donation, giving oneself up for others, non-violence and compassion for all living things.