This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...hs who do not challenge altruism’s basic premise, but proclaim their rebellion against self-sacrifice by announcing that they are totally indifferent to anything living and would not lift a fi
nger to help a man or a dog left mangled by a hit-and-run driver (who is usually one of their own kind).
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Most men do not accept or practice either side of altruism’s viciously fa
lse dichotomy, but its result is a total intellectual chaos on the issue of proper human relationships and on such questions as the nature, purpose or extent of the help one may give to others. ...