“Despite the fact that our profession constantly urges others to “consult the literature”, I do not think we are distinguished nowadays by knowledge of our heritage.”

2010s, 2018, The Restless Wave (2018)
Context: !-- I want to talk to my fellow Americans a little more, if I may: --> My fellow Americans. No association ever mattered more to me. We’re not always right. We’re impetuous and impatient, and rush into things without knowing what we’re really doing. We argue over little differences endlessly, and exaggerate them into lasting breaches. We can be selfish, and quick sometimes to shift the blame for our mistakes to others. But our country ‘tis of thee.‘ What great good we’ve done in the world, so much more good than harm. We served ourselves, of course, but we helped make others free, safe and prosperous because we weren’t threatened by other people’s liberty and success. We need each other. We need friends in the world, and they need us. The bell tolls for us, my friends, Humanity counts on us, and we ought to take measured pride in that. We have not been an island. We were ‘involved in mankind.‘
Before I leave, I’d like to see our politics begin to return to the purposes and practices that distinguish our history from the history of other nations. I would like to see us recover our sense that we are more alike than different. We are citizens of a republic made of shared ideals forged in a new world to replace the tribal enmities that tormented the old one. Even in times of political turmoil such as these, we share that awesome heritage and the responsibility to embrace it. Whether we think each other right or wrong in our views on the issues of the day, we owe each other our respect, as long as our character merits respect, and as long as we share, for all our differences, for all the rancorous debates that enliven and sometimes demean our politics, a mutual devotion to the ideals our nation was conceived to uphold, that all are created equal, and liberty and equal justice are the natural rights of all. Those rights inhabit the human heart, and from there, though they may be assailed, they can never be wrenched. I want to urge Americans, for as long as I can, to remember that this shared devotion to human rights is our truest heritage and our most important loyalty.

The Essentials of the Art of Medicine. 1897. p 26.

Quoted from his first book https://en.wikipedia.org/wiki/Success_and_Failure_Based_on_Reason_and_Reality, "Success and Failure Based on Reason and Reality" https://www.amazon.co.uk/SUCCESS-FAILURE-BASED-REASON-REALITY/dp/9970983903/ on Amazon, P.34 (July 2018)

Source: Initiation, The Perfecting of Man (1923)

Source: Inaugural Lecture, Oxford, 1961, p. 27

To question genetic intelligence is not racism (2007)
Context: Science is no stranger to controversy. The pursuit of discovery, of knowledge, is often uncomfortable and disconcerting. I have never been one to shy away from stating what I believe to be the truth, however difficult it might prove to be. This has, at times, got me in hot water.
Rarely more so than right now, where I find myself at the centre of a storm of criticism. I can understand much of this reaction. For if I said what I was quoted as saying, then I can only admit that I am bewildered by it. To those who have drawn the inference from my words that Africa, as a continent, is somehow genetically inferior, I can only apologise unreservedly. That is not what I meant. More importantly from my point of view, there is no scientific basis for such a belief.
I have always fiercely defended the position that we should base our view of the world on the state of our knowledge, on fact, and not on what we would like it to be. This is why genetics is so important. For it will lead us to answers to many of the big and difficult questions that have troubled people for hundreds, if not thousands, of years.
But those answers may not be easy, for, as I know all too well, genetics can be cruel. My own son may be one of its victims. Warm and perceptive at the age of 37, Rufus cannot lead an independent life because of schizophrenia, lacking the ability to engage in day-to-day activities.