What do we owe to each other simply out of respect, or concern, for our common humanity? What can we claim? The United Nations' Sustainable Development Goals and the Universal Declaration of Human Rights as well as many states' constitutions embody competing answers to these questions. Different accounts of what we owe to others out of concern for our common humanity ground divergent accounts of the basic minimum just societies and the international community must help people secure.

A Minimally Good Life argues that concern for our common humanity requires helping others live minimally good lives when doing so does not require sacrificing our own ability to live well enough. This, it suggests, provides a unified answer to the question of what we must give to, and can demand from, others as a basic minimum. More precisely, Nicole Hassoun argues that people must obtain the things that let them secure the relationships, pleasures, knowledge, appreciation, worthwhile activities, and other things that a reasonable and caring person free from coercion and constraint would set as a minimal standard of justifiable aspiration. That is, as reasonable, caring, free people, we should put ourselves into each other's shoes and think about what we need to live well enough as each person. Hassoun makes this case by engaging with the main competitors in the literature: those that offer different accounts of the basic minimum and the limits of our obligations. She then defends a new way of helping people in present and future generations reach the sufficiency threshold and of responding to apparent tragedy when helping everyone seems impossible.