Time and day. If you host chat at 4:00 pm your time, it will be 10 pm in Germany, 1 pm on west coast. And if you have it on Saturday or Sunday, the people working at home will probably be able to make it.

I used to host an international live chat on computer and found this worked for most people. But the people in Australia and New Zealand did not chat. I'm not sure about their time zones. But the suggested time will work for Europe to Hawaii, and I think for central and South America.

The idea that individuals can always choose their actions is something essential in Sartre philosophy. Even if the situation seems to let you no choice, seems to enslave you, the possibility of choice remains real. Besides, you always have the possibility of folding your arms, or choosing to die standing upright, even in the most tragic situations, such as the German occupation. The constant surveillance of individuals and the real threats that German occupant represented, the risk to die for example is not a justification to wait and see, or to collaboration. On the contrary, the more the choice clear and oversimplified is, the more individuals face their freedom. Indeed, during the German occupation, individuals were at any moment exposed to violence and were conscious of their vulnerability. Then, thought, acts and words took an extraordinary weight and at this very moment individuals were conscious of the price of freedom.

I have read little of original western philosophical works or structured reviews. It has been acquired by osmosis living growing up and living in a western culture with European roots. Most of the structured reviews has been by reading Chinese works reflecting back on European thought. French are considered a source in exploring the ideas of individual freedoms.