Who said “Man needs difficulties; they are necessary for health.”?

“Without adventure civilization is in full decay.”

“A large volume of adventures may be grasped within this little span of life, by him who interests his heart in everything.”

“The test of an adventure is that when you're in the middle of it, you say to yourself, "Oh, now I've got myself into an awful mess; I wish I were sitting quietly at home." And the sign that something's wrong with you is when you sit quietly at home wishing you were out having lots of adventure.”

“Adventure is worthwhile.”

“Who dares nothing, need hope for nothing.”

“There is no coming to consciousness without pain.”

“Our blight is ideologies -- they are the long-expected Antichrist!”

“If one does not understand a person, one tends to regard him as a fool.”

“Everything that irritates us about others can lead us to an understanding of ourselves.”

“There can be no transforming of darkness into light and of apathy into movement without emotion.”

“The healthy man does not torture others -- generally it is the tortured who turn into torturers.”