That man decides everything means he plays decisive role in transforming the world and shaping his destiny.
Man plays decisive role in transforming the world.
It means that volitional action of man exerts biggest influence among several factors acting in the world transformation and development.
Man positively participates in the transformation and development of the world in order to make everything in the world serve him and gives positive influence on it. The law of the world transformation and development is recognized purposefully and consciously and applied positively by the role of man. As a result, appearance of the world is now being rapidly changed.
Of course, material and technical means, social system and natural and geographical conditions cannot be ignored in transforming the world. But material and cultural wealth are created, social environment is improved and human society is continuously developed into an advanced one, by creative efforts and struggle of the people. This reality clearly proves that it is none other than man who plays decisive role in changing and developing the world. We say that man is the transformer of the world in the respect that he transforms the world positively and actively.
Man plays decisive role also in shaping his destiny.
It means that man plays decisive role among the factors which give influence upon shaping of his destiny.
Man’s role makes biggest action among all factors that give influence upon the shaping of man’s destiny. Influence that the surrounding world gives upon the shaping of man’s destiny is decided by how he acts.
Because man’s activity is decisive as compared with objective factors impacting upon the shaping of his destiny, we say that he plays decisive role in shaping his destiny.