"We always seem to be surprised by events, especially by catastrophes, but also by wonderful events. Look at 1990, the year that the Soviet Union collapsed and apartheid in South Africa collapsed and the Berlin Wall came down. I don't know anyone who foresaw those events. It seems to me that as a species we are constantly trying to adapt ourselves to the unexpected. In the meantime, we talk as if we are in control, and we're not. This seems to me to be the truth about the twentieth century."