Dr. Carl Sagan

I also wish that the Pledge of Allegiance were directed at the Constitution and the Bill of Rights, as it read more

I also wish that the Pledge of Allegiance were directed at the Constitution and the Bill of Rights, as it is when the President takes his oath of office, rather than to the flag and the nation

The surface of the Earth is the shore of the cosmic ocean. From it we have learned most of what read more

The surface of the Earth is the shore of the cosmic ocean. From it we have learned most of what we know. Recently, we have waded a little out to sea, enough to dampen our toes or, at most, wet our ankles. The water seems inviting. The ocean calls. So

There are many hypotheses in science which are wrong. That's perfectly all right; they're the aperture to finding out what's read more

There are many hypotheses in science which are wrong. That's perfectly all right; they're the aperture to finding out what's right. Science is a self-correcting process. To be accepted, new ideas must survive the most rigorous standards of evidence and scrutiny.

I worry that, especially as the Millennium edges nearer, pseudo-science and superstition will seem year by year more tempting, the read more

I worry that, especially as the Millennium edges nearer, pseudo-science and superstition will seem year by year more tempting, the siren song of unreason more sonorous and attractive.

You have to know the past to understand the present.

You have to know the past to understand the present.