1805. Those of this quality, because they study themselves alone, and are thus powerfully impelled by self-love, persecute and hold in aversion others who do not favor them. Such is the kind of humours which stagnate in the ventricles, and from which flow deadly damages; for these spirits, being collected together like humours, distend the hollow parts, and thus impede the operation of the nerves, depriving the blood of its liquids and spirits; and hence they are deadly.