A lot of people experience the world with the same increduli... - Jostein Gaarder, Sophie's World

"And although I have seen nothing but black crows in my life, it doesn't mean that there's no such thing as a white crow. Both for a philosopher and for a scientist it can be important not to reject the possibility of finding a white crow. You might almost say that hunting for 'the white crow' is science's principal task."

"ويبدوا أنه مع العمر لا يطل هناك ما يدهشان . لكننا بذلك نفقد شيئا أساسيا هو ما يحاول الفلاسفة إيقاظه فيه داخلنا. ذاك ‘ن صوتا في عمق أعماقنا يقول لنا ان الحياة لغز كبير. وهذا ما جربناه قبل أن يعلموننا اياه بكثير"

"Health is the natural condition. When sickness occurs, it is a sign that Nature has gone off course because of a physical or mental imbalance. The road to health for everyone is through moderation, harmony, and a 'sound mind in a sound body'."

"A philosopher knows that in reality he knows very little. That is why he constantly strives to achieve true insight. Socrates was one of these rare people. He knew that he knew nothing about life and about the world. And now comes the important part: it troubled him that he knew so little."

"The rearing of children is considered too important to be left to the individual and should be the responsibility of the state."