To any mental state there corresponds a physical condition.

To any mental state there corresponds a physical condition.

Truth is the one thing in nature always consistent with itself, and it is the one guide given to us in steering on the ocean of fate.

The tendency to superstitions should be counteracted from the earliest age; or rather steps should be taken to protect the mind of the child from superstitions imposed upon it by ignorant nurses or silly mothers.

Vanity is apt to inspire contempt, but that becomes immediately tempered by a gentler and more gracious feeling; for the vain man desires to win our approbation, and in this way he flatters us.

Intuition is the soul within the soul.

Human society is part of the general order, and the more our knowledge increases the less we are inclined to believe that the birth or death of princes, the rise or fall of millionaires, are matters that cause the sun to stand still or even produce the appearance of comets in the sky.