You cannot collaborate with ...

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?
 Sidney Jourard

Quotes from the same author

Paradoxically, we fail to disclose ourselves to other people because we want so much to be loved. Because we feel that way, we present ourselves as someone we think can be loved and accepted, and we conceal whatever would mar that image.
 Sidney Jourard
The act of writing bears something in common with the act of love. The writer, at his most productive moments, just flows. He gives of that which is uniquely himself. He makes himself naked, recording his nakedness in the written word. Herein lies some of the terror which frequently freezes a writer, preventing him from producing. Herein, too, lies some of the courage that must be entailed in letting others learn how one has experienced or is experiencing the world.
 Sidney Jourard