A man is like a fraction whose numerator is what he is and whose denominator is what he thinks of himself. The larger the denominator the smaller the fraction. - Count Lev Nikolgevich Tolstoy He is unworthy of the name of man who is ignorant of the fact that the diagonal of a square is incommensurable with its side. - Plato A linguist would be shocked to learn that if a set is not closed this does not mean that it is open, or again that ``E is dense in E'' does not mean the same thing as ``E is dense in itself.'' - J. E. Littlewood In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry, it's the exact opposite. - Paul Dirac The secret of genius is to carry the spirit of childhood into maturity. - T. H. Huxley Physics is like sex. Sure, it may give some practical results, but that's not why we do it. - R. Feynman