“We usually say that one must first understand simpler things. But what if feelings and viewpoints are the simpler things?”

Variant: Genius might be the ability to say a profound thing in a simple way.
Source: Portions from a Wine-Stained Notebook: Uncollected Stories and Essays, 1944-1990

As quoted in Dirac: A Scientific Biography (1990), by Helge Kragh, p. 258
Source: [Kragh, Helge, Dirac: A Scientific Biography, https://books.google.co.uk/books?id=zXm1Bso1VREC&pg=PA258&lpg=PA258&dq=%22The+aim+of+science+is+to+make+difficult+things+understandable+in+a+simpler+way;+the+aim+of+poetry+is+to+state+simple+things+in+an+incomprehensible+way.+The+two+are+incompatible%22&source=bl&ots=OLeGFpZGCh&sig=VRga1I7FVl9UBpXi_oAq_-8u_ls&hl=en&sa=X&ved=0ahUKEwjBwLbbwdvVAhXIIMAKHZ_pCZQQ6AEIOTAD#v=onepage&q=%22The%20aim%20of%20science%20is%20to%20make%20difficult%20things%20understandable%20in%20a%20simpler%20way%3B%20the%20aim%20of%20poetry%20is%20to%20state%20simple%20things%20in%20an%20incomprehensible%20way.%20The%20two%20are%20incompatible%22&f=false, March 30, 1990, 258, December 6, 2017]

Source: Chasm City (2001), Chapter 13 (p. 209).

Preface.
A History of Science Vol.1 Ancient Science Through the Golden Age of Greece (1952)
Context: As I grew older my lectures became simpler; I tried to say fewer things and to say them better, with more humanity. This book continues in a different way the same evolution, but it is not yet as simple as I would have liked to have made it.

Crime and Punishment (1866)

Sec. 179
The Gay Science (1882)

Source: The Magicians

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 224.

The Idiot (1868–9)
Context: Nor is there any embarrassment in the fact that we're ridiculous, isn't it true? For it's actually so, we are ridiculous, light-minded, with bad habits, we're bored, we don't know how to look, how to understand, we're all like that, all, you, and I, and they! Now, you're not offended when I tell you to your face that you're ridiculous? And if so, aren't you material? You know, in my opinion it's sometimes even good to be ridiculous, if not better: we can the sooner forgive each other, the sooner humble ourselves; we can't understand everything at once, we cant start right out with perfection! To achieve perfection, one must first begin by not understanding many things! And if we understand too quickly, we may not understand well. This I tell you, you, who have already been able to understand... and not understand … so much. I'm not afraid for you now;