else. It is only the highest intellectual power, what we call genius , that attains to this degree of intensity, making all time and existence its theme, and striving to express its peculiar conception of the world, whether it contemplates life as the subject of poetry or of philosophy. Hence, undisturbed occupation with himself, his own thoughts and works, is a matter of urgent necessity to such a man; solitude is welcome, leisure is the highest good, and everything else is unnecessary, nay, even burdensome. This is the only type of man of whom it can be said that his centre of gravity is entirely in himself; which explains why it is that people of this sort -- and they are very rare -- no matter how excellent their character may be, do not show that warm and unlimited interest in friends, family, and the community in general, of which others are so often capable; for if they have only themselves they are not inconsolable for the loss of everything else. This gives an isolation to their character, which is all the more effective since other people never really quite satisfy them, as being, on the whole, of a different nature: nay more, since this difference is constantly forcing itself upon their notice they get accustomed to move about amongst mankind as alien beings, and in thinking of humanity in general, to say they instead of we . So the conclusion we come to is that the man whom nature