"You cannot collaborate with another person toward some common end unless you know him. How can you know him, and he you, unless you have engaged in enough mutual disclosure of self to be able anticipate how he will react and what part he will play?"

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Whenever Alexander heard Philip had taken any town of importance, or won any signal victory, instead of rejoicing at it altogether, he would tell his companions that his father would anticipate everything, and leave him and them no opportunities of performing great and illustrious actions.

— Plutarch