舍己救人

to abandon self for others (idiom, from Analects); to sacrifice one's own interest for other people; altruism

selfless; self-sacrifice (to help others)

to give up one's private interests for the public good (idiom); to behave altruistically; selfless and public spirited

to jump into a well to rescue sb else (idiom); fig. to help others at the risk to oneself

bravery with no thought of personal safety (idiom); risking life and limb; undaunted by perils

to help the dying and heal the injured