To do anything in life, preparation is very important. Without sufficient preparation, it will be very difficult to do things. Preparation also includes learning. Professional things need to be understood in depth, understood clearly, understood, and it will be much easier to do things.

If we are going to travel, we need to make a travel plan, prepare the items we need to bring during the trip, the climatic characteristics and terrain characteristics of the place we are going to, and be prepared to enjoy the journey.
Think carefully before doing things and be prepared. No matter what you do, you should consider carefully as much as possible. It is difficult to do things well without thinking. It is better to think quietly before doing things than to do things blindly for a few days. You must form the habit of thinking and preparing in advance.
Sharp tools make good work. It is very important to build tools in advance. The scope of tools is very large. Marx's capital theory said that tools are simple machines, and machines are complex tools. If you want to do great things, you can't do without tools, not only physical tools, but also various reference books. When the tools are ready, things will be done more than half.

If you don't fight the battle of preparation, if you encounter difficulties in preparation, you should first solve the immediate difficulties. If you don't solve the current difficulties, things can't be completed smoothly, so success will always favor those who are prepared.