 
                            
                        
                        
                        Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book I, Chapter I "The Education of the Architect" Sec. 1
The Philosophical Emperor, a Political Experiment, or, The Progress of a False Position: (1841)
Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book I, Chapter I "The Education of the Architect" Sec. 1
New York Review of Books (19 July 1984)
Source: Just a Theory: Exploring the Nature of Science (2005), Chapter 8, “Science and Religion: Scientists Just Do Science” (pp. 136-137; minor grammatical errors corrected silently)
The New Economics for Industry, Government, Education (1993)
                                        
                                        Session 410, Page 284 
The Early Sessions: Sessions 1-42, 1997, The Early Sessions: Book 8
                                    
                                        
                                        Anatol Rapoport (1969) in: Modern Systems Research for the Behavioral Scientist. p. 139 
1960s
                                    
“A world without you is unknown to me. I don't even know if it exists.”
Source: Socrates In Love
“There is not a truth existing which I fear or would wish unknown to the whole world.”
                                        
                                        Letter to Henry Lee (15 May 1826) 
1820s
                                    
 
                            
                        
                        
                         
                            
                        
                        
                         
                            
                        
                        
                        