Quote
"Man and woman cease to be humans once they get lost into crowds."
"In the crowd, herd, or gang, it is a mass-mind that operates—which is to say, a mind without subtlety, a mind without compassion, a mind, finally, uncivilized."

A crowd is a group of people that have gathered for a common purpose or intent. Examples are a demonstration, a sports event, or a looting. A crowd may also simply be made up of many people going about their business in a busy area.
"Man and woman cease to be humans once they get lost into crowds."
"Pristine river of lives is swallowed by the crowd - Human getting lost into humans."
"A mobs a monster; heads enough, but no brains."
"A crowd is not the sum of the individuals who compose it. Rather it is a species of animal, without language or real consciousness, born when they gather, dying when they depart."