Science has a simple faith, which transcends utility. Nearly all men of science, all men of learning for that matter, and men of simple ways too, have it in some form and in some degree. It is the faith that it is the privilege of man to learn to understand, and that this is his mission. If we abandon that mission under stress we shall abandon it forever, for stress will not cease. Knowledge for the sake of understanding, not merely to prevail, that is the essence of our being. None can define its limits, or set its ultimate boundaries.

It was belief in God that motivated the advance of science in the 16th and 17th centuries. Gallelo, Copernicus, Kepler, and Newton expected to find law in nature because they believed in a great law giver. Now so often we hear the new atheists talk about faith, depricating it. I want to tell you that scientists are all people of faith. As Einstein saw, they believe that the universe is accessable to the human mind and physics can not explain that for the simple reason that you can't do physics without believing that the universe is intelligable. So science required faith.

Isn’t science, as some maintain, based on a “faith” that it’s good to pursue the truth? Hardly. The notion that knowledge is better than ignorance is not a quasi-religious faith, but a preference: we prefer to know the truth because accepting what’s false doesn’t give us useful answers about the universe.

If you believe in science [evolution] you must have a rather strong faith.

Science has sometimes been said to be opposed to faith, and inconsistent with it. But all science, in fact, rests on a basis of faith, for it assumes the permanence and uniformity of natural laws – a thing which can never be demonstrated.

No, we don’t have faith in reason and science in the same way as “Cru” members have faith in God. I see “faith” according to Walter Kaufmann’s definition: strong belief in propositions for which there is insufficient evidence to command the assent of every reasonable person. We have confidence in science because it has led us to provisional truths—it works. Cru doesn’t even know if there’s any God, or, if there is a divine presence, that it’s the Abrahamic god rather than the Hindu god, Yahweh, or Wotan. And we use reason in the same way: it leads us to truth. Revelation, dogma, and authority do not, for if they did there would be only one religion rather than thousands with their disparate and often conflicting doctrines.

Science requires skepticism. Religion requires belief.

Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: Ye must have faith. It is a quality which the scientist cannot dispense with.

We needn’t take things like reasoning on faith. We use reason because it works. And science isn’t really based on axioms: it’s not math. It’s based on a method that, refined over time, leads us to widely accepted facts about the universe: the facts that we can rely on to do things like establish the genealogy of species, cure disease, and land probes on comets. You can’t accomplish such things through prayer.

As a scientist, I know this is madness. But I also know this is an act of faith.

The most important component of the incompatibility between science and religion is religion’s dependence on faith.

Science will, in all probability, be increasingly impregnated by mysticism.

The harm, as I’ve said repeatedly, comes not from the existence of religion itself, but from its reliance on and glorification of faith—belief, or, if you will, “trust” or “confidence”—without supporting evidence. And faith, as employed in religion (and in most other areas), is a danger to both science and society. The danger to science is in how faith warps the public understanding of science: by arguing, for instance, that science is based just as strongly on faith as is religion; by claiming that revelation or the guidance of ancient books is just as reliable a guide to truth about our universe as are the tools of science; by thinking that an adequate explanation can be based on what is personally appealing rather than on what stands the test of empirical study.

Science is, at least in part, informed worship.