There are dangerous signs that the U.S. is turning its back on the principles of a free and open society that fostered the nation’s rise. I was born in the midst of the Great Depression, when no one could imagine the revolutionary technological advances that we now take for granted. Innovations in countless fields have transformed society and radically improved individual well-being, especially for the least fortunate. Every American’s life is now immeasurably better than it was 80 years ago.

What made these dramatic improvements possible was America’s uniquely free and open society, which has brought the country to the cusp of another explosion of life-changing innovation. But there are dangerous signs that the U.S. is turning its back on the principles that foster such advances, particularly in education, business and government. Which path will the country take?

When I attended the Massachusetts Institute of Technology in the 1950s, I quickly came to appreciate that scientific and technological progress requires the free and open exchange of ideas. The same holds true for moral and social progress. I have spent more than a half-century trying to apply this lesson in business and my personal life.