Philosophical progress changes what we take to be "intuitively" obvious, and this change covers up the tracks of the laborious arguments that preceded the changes. We don't see these changes, because we see with them.

What is play and delightful one kind of child is coercion and torture for another, and will not take no matter how much coercion is applied.

Plato's concern is not just an intellectual issue, but it is knitted with emotional life as well.

The good polis is made by the good person, his moral character intact, and the good polis, in turn, helps turn out good persons, their moral character intact.

Philosophy addresses, in a systematic and progress-making way, questions of deep concern to everyone.

Everybody have equal rights to a life of full flourishing. Philosophy slowly, slowly has given us arguments saying, look, you already committed to your own life flourishing, and you're being inconsistent if you don't expand it. So philosophy often works in trying to show us that there's an inner incoherence in our points of view. We're all committed to one thing when it comes to us and our own kind, but we're not willing to expand it and we're guilty of inconsistency.

Youth is not an essential, but rather an accidental property. Nobody is in essence young. One either ceases to be or ceases to be young.