Lynchings in the past have significantly shaped race relations in the present. A killing such as George Floyd's lands on black people with a much heavier psychological weight because of lynching's legacy. Too many white people fail to recognize this, and that needs to change. The hurt is too great, the simmering fear and anger too volatile, to bury forever. All Americans who would seek or demand a nation that is fairer to every citizen, less racist, and more peaceful have a responsibility to know this history in detail. … Confronting this ugliness would be difficult for everyone, of course, but it should be attempted. Ignorance and denial certainly have not worked, because this American wound still bleeds.

In 1972, from a distance of about 18,000 miles away, an Apollo 17 astronaut took a photo of the Earth that later would be named "The Blue Marble." That single unprecedented image of an illuminated Earth in full jolted billions into contemplating the beauty and fragility of our tiny home in the dark expanse.

When we transitioned to a species that relies so heavily on cognitive abilities, we became the most powerful and profoundly weird creatures of all time. Right now, more than 8 billion people carry inside their heads a three-pound blob of magic, an electrochemical storm of genius and creative madness that is unprecedented and unsurpassed in this planet's 4.5 billion years of natural history. This is who humans became long ago, and this is who you are now. You are one more unique link in a long, living chain of fantastic inventiveness and brilliant imagination.

I can easily imagine the first museum having existed a million or more years ago. Picture an elderly Homo erectus proudly displaying an assortment of exquisitely crafted Acheulian hand axes for all to see. Maybe there was even a children's educational section for hands-on tool making fun. For as long as humans have had stuff, someone probably felt compelled to show off that stuff.

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Our present course may be unsustainable. The synergy of increasingly sophisticated deception aimed at unthinking masses promises more crippling confusion, disruption, and chaos, perhaps more than America can endure. Every minute worrying about nefarious microchips in vaccines is time not spent intelligently evaluating risk and assessing evidence. Every day sacrificed at the altar of a conspiracy belief or at the feet of a hollow demagogue is another day lost to possible social and political progress for all.

Science has revealed that human vision is much closer to cognitive theater than video surveillance. But how many people know this? Most are unaware that seeing is largely a creative act, a process that presents us with a version of reality rather than an accurate reproduction.

We must use our brains to overcome our brains. You are the solution to this crazy world we find ourselves in. Do everything you can to reach others. Teach. Elevate. Encourage critical thinking. But do it with kindness and understanding. People who believe crazy things are only guilty of being human. Remember this and show compassion.

The reality is that racial lynchings were a frequent and normal feature of life in the South. This unique method of murder was a devastating form of terrorism that imposed a constant threat to all black people. The white authority structure did not only tolerate or encourage these killings but used the fear of lynchings to control and oppress black people.

All known life on Earth today is fundamentally similar, is genetically related, and shares descent from a single-celled common ancestor that lived at least 3 or 4 billion years ago. . . . Sometimes I get so wrapped up in thoughts about evolution, biodiversity, and the surprisingly close relationships between lifeforms that I look around and see only slight variations of genetic code.

Remember who you are: a human, a lifeform who still carries echoes of the forest and deep memories of the wild. Answer this call. Respond to the mind's natural attraction to the natural world. Do all you can to nurture your brain's need for nature so that it may serve you well.

Evolution is the long blur, a constant and living flow of branching relationships. One thing is always connected to another and another. Having no regard for our love of labels and organization, life rolls on as a continual stream of organic matter. The important thing about the origin of the human brain is not pinpointing some specific time, event, or fossil to declare a beginning in order to satisfy our desire for order. What matters is that we understand the process from which it emerged and how deeply rooted the modern human brain is to its past.