A live-stream broadcast of China's military parade has captured Xi Jinping and Vladimir Putin discussing biotechnology's potential to extend life.
An interpreter translating Mr Putin can be heard saying in Mandarin that human organ transplants could let "us live younger and younger, and perhaps even achieve immortality".
Mr Xi responded that it may be possible for people to live to 150 years this century.
It is difficult for me to imagine what “personal liberty” is enjoyed by an unemployed person, who goes about hungry, and cannot find employment.
Real liberty can exist only where exploitation has been abolished, where there is no oppression of some by others, where there is no unemployment and poverty, where a man is not haunted by the fear of being tomorrow deprived of work, of home and of bread. Only in such a society is real, and not paper, personal and every other liberty possible.