That whose existence is necessary must necessarily be one essence.

The world is divided into men who have wit and no religion and men who have religion and no wit.

Therefore in medicine we ought to know the causes of sickness and health.

The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.

I love yoga. I'll film a class with my teacher, bring my mat with me, and just do it anywhere.

For business, government, and education, the lesson is clear: People ought to be relying far more on objective information and far less on interviews. They might even want to think about scaling back or cancelling interviews altogether. They'll save a lot of time - and make better decisions.

People need to realize that community colleges really give you a good education. And they do - that's just a simple fact of it.

As a teacher at Princeton, I'm surrounded by people who work hard so I just make good use of my time. And I don't really think of it as work - writing a novel, in one sense, is a problem-solving exercise.