The boundaries which will determine our future are not geographic...The true boundary is, rather, the knowledge that there is a limit to power. The r… - Shulamith Hareven

Today, we can discern from the vocabulary the underlying ideology of a text or a speech. No self-respecting liberal would freely use the terms "enemy," or "annihilate," or "avenge," which no fundamentalist can do without.

It is a familiar sight: an intellectual so sure of his thesis or model that he pesters the powers that be to put it into practice. Accountability, however, will always fall on the person who acted on the theory, not the person who invented it. We confer upon the intellectual-by definition-the full and complete freedom to create a theory and to build an abstract model without any responsibility for the results, and this is indeed one of the most difficult problems to be pondered on in the humanities.

To be able to one day change a harsh reality, we need to know how to define what needs to be changed and how to effect change. To cope with situations in life-both personal and public-we need to have a real picture of these situations and of their possible outcomes. We need to know the price of each and who will pay it in the end. To know that every act and every error has consequences. To reduce to a minimum the possibility that someone-the regime, or the press, or the local leadership-will deceive us, cram us with false "facts" that are appropriate to whoever is making use of them. To make quite sure that, in the highest possible percentage of cases, we can make our own decisions and not let someone else think for us. All these things require a constant and precise mapping of reality. In other words, they require information about what exists and what is possible.