"Technological progress is like an axe in the hands of a pathological criminal."- Albert Einstein, letter to a friend, 1917
I think what Einstein meant in this term is that technological progress and technology always involve the risk of danger and destruction, and future are handed to human's hands, human which also always involve the risk of danger and destruction. As it can be seen in quotes like "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe” and “It is easier to denature plutonium than to denature the evil spirit of man”, Einstein left many words that refer to human's evilness; he thought evilness as human nature, and deplored about it. The quote itself seems to say that technology is too dangerous because of the firm human nature. However, from other quotes like “We cannot despair of humanity, since we ourselves are human beings”, it seems that even Einstein was anxious about humans future, he was willing to change people and did not lose hope for that. I wonder how Einstein think about the nowadays world, filled up with nuclear problems, since he said "The release of atom power has changed everything except our way of thinking...the solution to this problem lies in the heart of mankind. If only I had known, I should have become a watchmaker."