Man's consciousness is his least known and most abused vital organ. Most people believe that consciousness as such is some sort of indeterminate faculty which has no nature, no specific identity and therefore no requirements, no needs, no rules for being properly or improperly used.... Men abuse, subvert and starve their consciousness in a manner they would not dream of applying to their hair, toenails or stomachs. They know that these things have a specific identity and specific requirements, and, if one whishes to preserve them, one must comb one's hair, trim one's toenails and refrain from swallowing rat poison.

Ayn Rand