It is unwise to put all eggs in one basket I think this theme implies a principle that distributes risks into different areas is a secure way to protect assets. With the increasingly active economic activity, more people tend to make the investment of business, but the blind invest scheme of throw whole money into one project is dangerous behaviour. "Put all eggs in one basket" is a good example to interpret it, if the basket drops-down to ground, all of the eggs will break. I pursue the principle that advance can be attacked and retreat can be defended, never hang on one tree waiting for die. In our daily life, something out of our control, its main root in the following points: Firstly, lack of cognition to what you will step into the area. Secondly, lack of alternatives. Needed improve these to answer the problem we encounter. All in all, make the best preparation to answer the worst result is the ideal psychological preparation.