“Think of your head as an unsafe neighborhood; don't go there alone.”
                                        
                                        Variant: your mind is like an unsafe neighborhood; don't go there alone. 
Source: Dry
                                    
Source: Antigone, Line 706
“Think of your head as an unsafe neighborhood; don't go there alone.”
                                        
                                        Variant: your mind is like an unsafe neighborhood; don't go there alone. 
Source: Dry
                                    
In a discussion thread https://www.lesswrong.com/posts/zsznamBgNuj3XX2DP/self-congratulatory-rationalism#2pmeNAZ33A8y43464 on LessWrong, March 2014
Elliot's Debates, volume 1, p. 463. (29 July 1788)