Definition of 'altruism'

This work is not just a show of altruism.

He said that they had shown courage and altruism and made the supreme sacrifice.

What other human behaviour has its origins in reciprocal altruism?

He has used his sporting status to entice people into altruism.

Taking all this trouble to build such a sympathetic environment was not done out of pure altruism but to improve the organisation.

Theirs is a mixture of altruism and self-interest.

Nobody pretends that the retailers' attempts to green themselves are pure altruism.

He showed unflinching altruism, risking all for people he did not know.

They appealed to people 's altruism.

Honours should be for people who have shown genuine altruism and dedication and commitment to helping others, or making this country stronger.

My reason for acquiring one is self-interest, not altruism.

This behaviour is known as reciprocal altruism - self-interested and interested in others at the same time.

Human co-operation is reciprocal altruism.

So alongside reciprocal altruism there evolved ways of identifying people who would - if you did a favour for them - do a favour back.