“Always listen to yourself… It is better to be wrong than simply to follow convention.”

The Blackfoot Physics (2006)

Who is Lucifer?
The Lucifer Principle: A Scientific Expedition Into the Forces of History (1997)

Letter From Thomas Jefferson to the Rev. James Madison, 19 July 1788
1780s

Paris Review interview (1958)
Context: Always dream and shoot higher than you know you can do. Don't bother just to be better than your contemporaries or predecessors. Try to be better than yourself. An artist is a creature driven by demons. He don’t know why they choose him and he’s usually too busy to wonder why. He is completely amoral in that he will rob, borrow, beg, or steal from anybody and everybody to get the work done.

Forbes: "5 Obstacles That Inspired Me To Innovate" https://www.forbes.com/sites/theyec/2018/06/28/5-obstacles-that-inspired-me-to-innovate/#8f06bb42b77f (28 June 2018)

In Memory Yet Green (1979), p. 175
General sources

Il y avait un nombre important de questions que je m'étais posées et, comme vous le savez, lorsqu'on se pose vraiment les questions, on donne de meilleures réponses que si l'on se contente de lire les réponses convenues.
explaining how he came to write his textbook on quantum mechanics, in Descente au coeur de la matière, an interview edited by [Stéphane Deligeorges, Le monde quantique, Editions du Seuil, Sciences et Avenir, 1984, 2020089084, 111]

Sentence-Sermons from Brigham Young University Quarterly quoted in The Latter-Day Saints' Millenial Star, Vol. 70 https://books.google.com/books?id=eItJAAAAYAAJ&pg=PA452&lpg=PA452&dq=He+that+cheats+another+is+a+knave;+but+he+that+cheats+himself+is+a+fool.&source=bl&ots=WBAQiPjQX6&sig=WLEdKN2_kXPXj8jZALKCp2dguaQ&hl=en&sa=X&ved=0ahUKEwjXmNeF_7HMAhUH42MKHdySDgsQ6AEILzAE#v=onepage&q=fool&f=false