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

Are people ethically obligated to improve themselves?

Is a happy life a life of pleasures?

Do humans need to be governed?

Are all truths demonstrable?

Does the idea of total freedom make sense?

Is defending your rights the same as defending your interests?

Is memory sufficient to be a historian?

Does language only serve to communicate?

Can anything truly be objective?

Do we understand the present better than the past?

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

Is hierarchy necessary for all successful human communities?

How much does language affect our thinking?

Can scientific truth be dangerous?

Is some degree of censorship necessary?

Is freedom limited to the necessity to work?

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