What ideas about painting did Georges Braque express in Thoughts and Reflections on Painting?

In his 1917 collection of aphorisms titled "Thoughts and Reflections on Painting," Georges Braque articulated a rational and poetic philosophy that underpinned the development of Cubism. His key ideas included:1

• Constitutive vs. Anecdotal: Braque argued that the artist's goal is not to "reconstitute" an anecdotal fact, but rather to "constitute" a pictorial fact.1
• The Role of the Mind: He believed that while the senses may deform reality, the mind provides the necessary structure to form it.1
• Rule and Emotion: He expressed a preference for discipline, stating, "I love the rule that corrects emotion".1
• Nature and Improvisation: He maintained that working directly from nature is essentially an act of improvisation.1
• Innovation: He advocated for the use of "new means" to explore "new subjects," reflecting his commitment to the evolving nature of art.1

These reflections highlight Braque's transition away from traditional illusionistic representation toward the view that a painting is an autonomous object.1