People can make arguments from the Bible if they want to. But I want them to see that they should also give arguments that all reasonable citizens might agree to.

Liberal constitutional democracy is supposed to ensure that each citizen is free and equal and protected by basic rights and liberties.

Justice as fairness provides what we want.

You might say that, if citizens are acting for the right reasons in a constitutional regime, then regardless of their comprehensive doctrines they want every other citizen to have justice. So you might say they're all working together to do one thing, namely to make sure every citizen has justice. Now that's not the only interest they all have, but it's the single thing they're all trying to do. In my language, they've striving toward one single end, the end of justice for all citizens.

Justice is the first virtue of social institutions.

If A were not allowed his better position, B would be even worse off than he is.

The naturally advantaged are not to gain merely because they are more gifted, but only to cover the costs of training and education and for using their endowments in ways that help the less fortunate as well.