Crowds are somewhat like the sphinx of ancient fable: It is necessary to arrive at a solution of the problems offered by their psychology or to resign ourselves to being devoured by them.

Science has promised us truth...It has never promised us either peace or happiness.

The masses have never thirsted after truth. Whoever can supply them with illusions is easily their master; whoever attempts to destroy their illusions is always their victim.

The precise moment at which a great belief is doomed is easily recognisable; it is the moment when its value begins to be called in question.

The beginning of a revolution is in reality the end of a belief.

Crowds are influenced mainly by images produced by the judicious employment of words and formulas

If atheism spread, it would become a religion as intolerable as the ancient ones.