My passion is for scientific truth. I don't much care about good and evil. ... I care about what's true.

Religious people are atheists about all other gods, atheists only take it one god further.

In true natural selection, if a body has what it takes to survive, its genes automatically survive because they are inside it. So the genes that survive tend to be, automatically, those genes that confer on bodies the qualities that assist them to survive.

I am an enthusiastic Darwinian, but I think Darwinism is too big a theory to be confined to the narrow context of the gene.

[Alternative medicine is defined as] that set of practices that cannot be tested, refuse to be tested or consistently fail tests.

Science has taught us, against all intuition, that apparently solid things like crystals and rocks are really almost entirely composed of empty space. And the familiar illustration is the nucleus of an atom is a fly in the middle of a sports stadium, and the next atom is in the next sports stadium.

Science, as opposed to technology, does violence to common sense.