*Does the universe have a purpose? Does life have a purpose?
*Is there order in the cosmos independent of what the mind puts there? Could the universe be radically different from how we conceive it?
*Is a person more than a physical body? What is the mind? What is thought?
*Do people really have free will?
*Is there a God?
*Does it make a difference if there is or isn't a God?
*What is art? What is beauty?
*What is truth?
*Is it possible to know anything with absolute certainty?
*What is moral obligation? What is the extent of our moral obligation to other people and other living things?
*What kind of person should I be?
*What are the ethically legitimate functions and scope of the state? What is its proper organization?