And who is willing to destroy a piece of his own heart. To choose rationally, one must choose morally. There is not just one way to build a house, or even to grow tomatoes. By legend and perhaps by nature philosophers are more accustomed to the armchair than the workbench. The minimal state is inspiring as well as right.
Proper names are rigid designators.
Philosophy should be founded on detailed, positive knowledge of actual processes in the world and not on abstract assessments of human capacities. No principles are such that one is obliged, if one has correctly learned their meaning, to accept their truth. A sick person can as quickly be cured. A childless person can suddenly conceive or beget a child. Its yielding and open posture towards the world give it the fragility, as well as the beauty, of a plant.