The physician who waits until dead certain of a diagnosis before acting is likely to wind up with a dead patient. Sometimes things develop so rapidly that only early action-back when you're still somewhat uncertain-stands a chance of being effective, as in catching cancer before it metastasizes.

If you put a large switch in some cave somewhere, and a sign on it saying, "End-of-the-World Switch. PLEASE TO NOT TOUCH," the paint wouldn't even have time to dry.

In 1920 [H.G. Wells] described human history as becoming more and more a race between education and catastrophe.

The theory of meaning says that joining and serving in things larger than you that you believe in while using your highest strengths is a recipe for meaning.

We are at an inflection point in history.

The inflection point at which we have arrived is one in which we are increasingly seizing the keys to all creation, as astonding as that might seem.

The only reason Toronto is no longer the dullest city on earth is that it is no longer full of Anglo-Canadians. It is full of Hong Kong Chinese. And not a few Italians.