Martin Rees's Speech on "Our Final Century"

In second part of talk Sir Martin Rees express his concern about the changes in last century. He shows up and down sides of new technologies.
While explaining dark side of science he talked about unintended consequences. Rees's speech is a warning for mankind to be conscious of our impact and aware of our situation.
He said "The science done by the young Einstein will continue as long as our civilization, but for civilization to survive, we’ll need the wisdom of the old Einstein".
He urges to world that with scientific and technological development, we need to be humene, global and foreseeing.