An Incomplete Experiment About Wisdom

The most precious thing for a person is life, Life belongs to us only once. This is how a person's life should be spent: When he looks back on his past, Don't regret wasting your years, Nor will I be ashamed of my past inaction, In this way, when he was dying, he could say: "My whole life and all my energy, All dedicated to the most magnificent cause in the world - Struggle for the liberation of mankind. " ——Paul Korchagin