“Push hands is practiced between two people: the intitiator and the one acted upon. Initiating is called ‘asking’. The person acted upon ‘answers’. When the opponent asks, listen first before answering.”

Anatol Rapoport, "Modern Systems Theory – An Outlook for Coping with Change", paper given in the 1970 John Umstead Distinguished Lectures at North Carolina Department of Mental Health, Research Division, on 5 February 1970, and appeared in Revue Francaise de Sociologie, October 1969, p. 16
1970s and later

Source: The Best That Money Can't Buy: Beyond Politics, Poverty, & War (2002), p. 18.

The Blackfoot Physics (2006)

47 : The Question and its Answer, p. 78.
The Everything and the Nothing (1963)

Variant: People only ask questions when they're ready to hear the answers.
Source: The Cider House Rules

Original: (it) Quando si è bimbi si fanno tante domande pretendendo altrettante risposte. Quando si è adulti si evitano molte domande, per evitare inutili risposte.
Source: prevale.net

Aristotle, 9.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 5: The Peripatetics