Let nature take its course, be calm when things go wrong, be indifferent when you are proud, and be calm when you are frustrated.

"Let nature take its course, take things calmly, be indifferent when you are proud, and be calm when you are frustrated" is a philosophy of life, which emphasizes maintaining a calm and calm attitude in the face of various situations.

This sentence conveys a mentality, that is, to treat success or failure with a peaceful attitude. In success, indifference means not being arrogant, not being intoxicated with success, being humble and balanced. Facing failure calmly means accepting failure, not being depressed or desperate, but learning from it and moving on.

This mentality can help people better cope with the ups and downs and challenges in life and maintain inner peace and stability. It reminds us to keep an objective and rational attitude towards things, not to be too obsessed with the results, but to focus on the actions and attitudes that we can control.

However, this does not mean that we should be indifferent to everything or let it go. It is more of a psychological suggestion, reminding us to deal with changes and difficulties with a calm mind and find positive solutions.