"The result of this mental dullness is that inner vacuity and emptiness that is stamped on innumerable faces and also betrays itself in a constant and lively attention to all events in the external world, even the most trivial. This vacuity is the real source of boredom and always craves for external excitement in order to set the mind and spirits in motion through something. Therefore in the choice thereof it is not fastidious, as is testified by the miserable and wretched pastimes to which people have recourse. ... The principal result of this inner vacuity is the craze for society, diversion, amusement, and luxury of every kind which lead many to extravagance and so to misery. Nothing protects us so surely from this wrong turning as inner wealth, the wealth of the mind, for the more eminent it becomes, the less room does it leave for boredom. The inexhaustible activity of ideas, their constantly renewed play with the manifold phenomena of the inner and outer worlds, the power and urge always to make different combinations of them, all these put the eminent mind, apart from moments of relaxation, quite beyond the reach of boredom."