Dr. Carl Sagan

You have to know the past to understand the present.

You have to know the past to understand the present.

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.

It is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and read more

It is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.

When Kepler found his long-cherished belief did not agree with the most precise observation, he accepted the uncomfortable fact. He read more

When Kepler found his long-cherished belief did not agree with the most precise observation, he accepted the uncomfortable fact. He preferred the hard truth to his dearest illusions; that is the heart of science.

The Universe forces those who live in it to understand it. Those creatures who find everyday experience a muddled jumble read more

The Universe forces those who live in it to understand it. Those creatures who find everyday experience a muddled jumble of events with no predictability, no regularity, are in grave peril. The Universe belongs to those who, at least to some degree,