Taking individual steps to affect the course of climate change is valuable, but collective action is more essential. To get there, we must talk about climate change, says Bill Nye the Science Guy.

Geobiologist Hope Jahren: studying the natural world of plants helps us transcend our human form, find joy and meaning in life, and feel more at home in this world we all journey through.

What's the best advice novelist Joshua Cohen has for aspiring writers? It's not to kill your darlings but kill your distractions. And get in touch with your deepest animal impulses.

Creators of artificial intelligence measure how well machines can imitate human qualities like empathy, listening, affirmation, and love. Don't reciprocate, says Sherry Turkle.

It is one thing not to discriminate against people, says Salman Rushdie, i.e. peaceful practitioners of Islam, but to foreclose an open debate over the merits of religion is a mistake.

Modern "theories" suggesting the Earth is flat are ignorant of basic experiential data, historical scientific findings, and how technologies like smartphone functions, says Bill Nye the Science Guy.

The road to eugenics was paved with good intentions, says Siddhartha Mukherjee. So what questions are essential to ask now that we can change human DNA through gene editing technology?

We assume that getting a "yes" from the other side is the goal of any negotiation, but former lead FBI negotiator Chris Voss says knowing how to get a "no" is actually more important.

Lewis Black argues that when it comes to comedy, defying political correctness is categorically different from mean-spirited rhetoric, plus political correctness has no desire to laugh.

People want to know that their efforts matter, says former Yum! Foods CEO David Novak, but 82 percent of workers say they don't feel recognized by their supervisors.

Your state of mind affects how you breathe, and how you breathe determines your emotional state. Here is a breathing technique to restore calmness, concentration, and energy.

Nine wars have been predicted to erupt since the early 1990s, and all have failed to materialize. That's a result of trade, the interconnectedness of financial markets, and supply chain integration.

NASA could get a crew of astronauts to orbit Mars by 2033 without increasing its budget beyond the rate of inflation, says Bill Nye the Science Guy. That's exciting news.

Everything we know about gravity suggests the universe should expand at a decelerating rate, but the opposite is true says Christophe Galfard, Stephen Hawking's protege.

Life is a marathon, says Dr. David Agus. Maintaining longterm brain health is all about having positive social relationships, and scheduling time for the brain to relax.

America's vision of security after the 9/11 terrorist attacks excluded domestic threats like gun violence and natural disasters like Hurricane Katrina, says a former assistant secretary of President Obama's Homeland Security team.

Music mogul Russell Simmons was close with Donald Trump for many years. He says even if Bernie Sanders or Hillary Clinton defeats Trump, his effect on our politics will prove lasting.

Doing ritual, whether it's a religious ceremony or a simple greeting on the street, is a powerful way to break bad habits and improve our lives, says Harvard historian Michael Puett.

How you perform on an individual task — an exam or project at work — does not predict longterm success as well as a behavior called "grit." So what is grit, and how can we use it to succeed?

Being your true self means being present under trying circumstances, but that takes practice and a certain amount of self-knowledge. Here's what you need to know to get started.