The caduceus had a power to induce wakefulness, or to cause sleep. […] She was the goddess of youth, and had the power of imparting to others her own perpetual healthfulness and vigour. […] In a lake whose waters approached to his lips, he stood burning with thirst without the power to drink. […] Some have numerous heads and arms, the rude symbols of superhuman wisdom and gigantic power. […] Intelligence is the power of thought and reflection.