This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...iend is in trouble, one should act to help him by whatever nonsacrificial means are appropriate. For instance, if one’s friend is starving, it is not a sacrifice, but an act of integrity to gi
ve him money for food rather than buy some insignificant gadget for oneself, because his welfare is important in the scale of one’s personal values. If the gadget means more than the friend’
s suffering, one had no business pretending to be his friend.
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The practical implementation of friendship, affection and love consists of incorporating the welfare (the rational wel...