"Just as a cautious businessman avoids investing all his capital in one concern, so wisdom would probably admonish us also not to anticipate all our happiness from one quarter alone."
"What we call happiness in the strictest sense comes from the (preferably sudden) satisfaction of needs which have been dammed up to a high degree."
"The interpretation of dreams is the royal road to a knowledge of the unconscious activities of the mind."
"What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult."
