When studying the imagination of crowds we saw that it is particularly open to the impressions produced by images. These images do not always lie ready to hand, but it is possible to evoke them by the judicious employment of words and formulas. Handled with art, they possess in sober truth the mysterious power formerly attributed to them by the adepts of magic. They cause the birth in the minds of crowds of the most formidable tempests, which in turn they are capable of stilling. A pyramid far loftier than that of old Cheops could be raised merely with the bones of men who have been victims of the power of words and formulas. The power of words is bound up with the images they evoke, and is quite independent of their real significance. Words whose sense is the most ill-defined are sometimes those that possess the most influence. Such, for example, are the terms democracy, socialism, equality, liberty, &c., whose meaning is so vague that bulky volumes do not suffice to precisely fix it. Yet it is certain that a truly magical power is attached to those short syllables, as if they contained the solution of all problems. They synthesise the most diverse unconscious aspirations and the hope of their realisation. Reason and arguments are incapable of combatting certain words and formulas. They are uttered with solemnity in the presence of crowds, and as soon as they have been pronounced an expression of respect is visible on every countenance, and all heads are bowed. By many they are considered as natural forces, as supernatural powers. They evoke grandiose and vague images in men's minds, but this very vagueness that wraps them in obscurity augments their mysterious power. They are the mysterious divinities hidden behind the tabernacle, which the devout only approach in fear and trembling. The images evoked by words being independent of their sense, they vary from age to age and from people to people, the formulas remaining identical. Certain transitory images are attached to certain words: the word is merely as it were the button of an electric bell that calls them up. All words and all formulas do not possess the power of evoking images, while there are some which have once had this power, but lose it in the course of use, and cease to waken any response in the mind. They then become vain sounds, whose principal utility is to relieve the person who employs them of the obligation of thinking. Armed with a small stock of formulas and commonplaces learnt while we are young, we possess all that is needed to traverse life without the tiring necessity of having to reflect on anything whatever.