Radical constructivism, thus, is radical because it breaks with convention and develops a theory of knowledge in which knowledge does not reflect an 'objective' ontological reality.

This is the secret of propaganda: To totally saturate the person, whom the propaganda wants to lay hold of, with the ideas of the propaganda, without him even noticing that he is being saturated.

It obviously makes a difference whether we consider ourselves as pawns in a game whose rules we call reality or as players of the game who know that the rules are ‘real’ only to the extent that we have created or accepted them, and that we can change them.

That we do not discover reality but rather invent it is quite shocking for many people. And the shocking part about it - according to the concept of radical constructivism - is that the only thing we can ever know about the real reality (if it even exists) is what it is not. It is only with the collapse of our constructions of reality that we first discover that the world is not the way we imagine.

Man never ceases to seek knowledge about the objects of his experiences, to understand their meaning for his existence and to react to them according to his understanding. Finally, out of the sum total of the meanings that he has deduced from his contacts with numerous single objects of his environment there grows a unified view of the world into which he finds himself "thrown" (to use an existentialist term again) and this view is of the third order.

But the solution to the riddle of life and space and time lies outside space and time. For, as it should be abundantly clear by now, nothing inside a frame can state, or even ask, anything about that frame. The solution, then, is not the finding of an answer to the riddle of existence, but the realization that there is no riddle. This is the essence of the beautiful, almost Zen Buddhist closing sentences of the Tracticus: "For an answer which cannot be expressed the question too cannot be expressed. The riddle does not exist."

Maturity is doing what you think is best, even when your mother thinks it's a good idea.