Are people ethically obligated to improve themselves?

Can anything truly be objective?

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

Is defending your rights the same as defending your interests?

Are all truths demonstrable?

Does language only serve to communicate?

Is memory sufficient to be a historian?

Is freedom limited to the necessity to work?

Do we understand the present better than the past?

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

Can scientific truth be dangerous?

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

Is some degree of censorship necessary?

Do humans need to be governed?

Is hierarchy necessary for all successful human communities?

How much does language affect our thinking?

Does the idea of total freedom make sense?

Is a happy life a life of pleasures?