Neurosis is the inability to tolerate ambiguity.
ambiguityquotes
Man must not attempt to dispel the ambiguity of his being but, on the contrary, accept the task of realizing it.
As long as there have been men and they have lived, they have all felt this tragic ambiguity of their condition, but as long as there have been philosophers and they have thought, most of them have tried to mask it.
Intolerance of ambiguity is the mark of an authoritarian personality.