The authors of your text tell a story about abraham lincoln in which lincoln ordered a coach to stop so he could save some piglets from drowning. lincoln claimed that he helped because "i should have had no peace of mind all day had i gone on and left that suffering old sow worrying over those pigs." lincoln argued that he was helping because of

Mr. Lincoln once remarked to a fellow-passenger that all men were triggered by selfishness in doing good. The fellow-passenger was antagonizing this position when they passed over a corduroy bridge which spanned a slough. As they were crossing this bridge, they saw an old sow on the bank which was making a terrible noise because her pigs got into the slough and could drown.

As the old coach was climbing the hill, Mr. Lincoln said “Driver, can’t you stop just a moment?” Mr. Lincoln then jumped out, ran back and then lifted the little pigs out of the mud they were in and placed them on the bank. His companion remarked when he returned that "where does selfishness come in what he just did?

Mr Lincoln said that "he whould have had no peace of mind if he had left that the suffering old sow to be worried about her pigs and helping her was because he wanted peace of mind which was selfishness.