Self-knowledge is like lost innocence; however unsettling you find it, it can never be 'unthought' or 'unknown'.

Whether you're a libertarian liberal or a more egalitarian liberal, the idea is that justice means being non-judgmental with respect to the preferences people bring to public life.

Other animals can make sounds, and sounds can indicate pleasure and pain. But language, a distinctly human capacity, isn´t just for registering pleasure and pain. It´s about declaring what is just and what is unjust, and distinguishing right from wrong. We don´t grasp these things silently, and then put words to them; language is the medium through which we discern and deliberate about the good.

Self-knowledge is like lost innocence; however unsettling you find it, it can never be 'unthought' or 'unknown'.

I have a broad but not an expert or scholarly background in the Jewish tradition. I've tried to learn what I can from childhood, but I am not an expert on Jewish teachings.

Today if you look at most economic textbooks, economics is not defined by subject matter. It's presented as a science of social choice that applies not only to material goods - not only to flat-screen televisions - but to every decision we make, whether it's to get married, or to stay married, whether to have children and how to educate those children, or how to look after our health.

I think part of being a parent, to love one's child, is to accept them as they come - not to see them as instruments of our ambition or as creatures to be molded, as if they were themselves commodities.