Do we understand the present better than the past?

Is memory sufficient to be a historian?

Are people ethically obligated to improve themselves?

Is it possible to prove that other people besides yourself have consciousness?

Can scientific truth be dangerous?

Is hierarchy necessary for all successful human communities?

Is some degree of censorship necessary?

Does the idea of total freedom make sense?

Is defending your rights the same as defending your interests?

Is freedom limited to the necessity to work?

Does language only serve to communicate?

Can anything truly be objective?

Do humans need to be governed?

Are all truths demonstrable?

Is a happy life a life of pleasures?

Do people in wealthier countries have a moral obligation to help those in poorer countries?

How much does language affect our thinking?

If language influences how we perceive color, what other things could languages be changing our perception of?