“Appear weak when you are strong, and strong when you are weak.”

“There are not more than five musical notes, yet the combinations of these five give rise to more melodies than can ever be heard. There are not more than five primary colours, yet in combinationthe...”

“The wise warrior avoids the battle.”

“Engage people with what they expect; it is what they are able to discern and confirms their projections. It settles them into predictable patterns of response, occupying their minds while you wait ...”

“The supreme art of war is to subdue the enemy without fighting.”

“Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt.”

“Its important to be comfortable with uncertainty.”

“The Chinese use two brush strokes to write the word 'crisis.' One brush stroke stands for danger; the other for opportunity. In a crisis, be aware of the danger--but recognize the opportunity.”

“If we don't change the direction we are headed, we will end up where we are going.”

“Empiricism teaches that there is a real world of fixed things on the outside and that ideas of these outside things are stamped on the mind which is at the beginning of life a blank.”

“All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.”

“The four most expensive word in the English language are 'This time it's different.”

“Maybe each human being lives in a unique world, a private world different from those inhabited and experienced by all other humans. . . If reality differs from person to person, can we speak of rea...”

“The only thing that makes life possible is permanent, intolerable uncertainty: not knowing what comes next.”

“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...”