500.
Against the Grain.—A thinker may for years at a time force himself to think against the grain: that is, not to pursue the thoughts that spring up within him, but, instead, those which he is compelled to follow by the exigencies of his office, an established division of time, or any arbitrary duty which he may find it necessary to fulfil. In the long run, however, he will fall ill; for this apparently moral self-command will destroy his nervous system as thoroughly and completely as regular debauchery.