The way in which men produce their means of subsistence depends first of all on the nature of the actual means they find in existence and have to reproduce.
思考就是将自己局限于一个单一的思想，有一天它会像世界天空中的一颗星星一样静止不动。
仰望星空，而不是低头看脚。试着理解你所看到的，并思考是什么让宇宙存在。保持好奇心。
If you get up in the morning and think the future is going to be better, it is a bright day. Otherwise, it's not.
History is about to crack wide open. Millennium approaches.