All empty souls tend to extreme opinion. It is only in those who have built up a rich world of memories and habits of thought that extreme opinions affront the sense of probability. Propositions, for instance, which set all the truth upon one side can only enter rich minds to dislocate and strain, if they can enter at all, and sooner or later the mind expels them by instinct.
William Butler YeatsPeople who lean on logic and philosophy and rational exposition end by starving the best part of the mind.
William Butler YeatsThe fascination of what's difficult Has dried the sap out of my veins, and rent Spontaneous joy and natural content Out of my heart.
William Butler Yeats