The most precious thing about man is life. Everyone has only one life. Therefore, a man's life should be spent in such a way that when he looks back on his lost years, he does not regret having wasted time, nor is he ashamed of having achieved nothing; so that, when he is about to die, he can frankly say: I have devoted my whole life and all my energies to the most magnificent cause in the world, the struggle for the liberation of mankind