With respect to those meanings of 'human' that are relevant to the morality of abortion, any fetus is less human than an adult pig.

We should learn to understand natural selection, so that we can oppose any tendency to apply it to human politics.

...there are no natural borderlines in evolution. The illusion of a borderline is created by the fact that the evolutionary intermediates happen to be extinct.

Things exist either because they have recently come into existence or because they have qualities that made them unlikely to be destroyed in the past.

As my colleague, the physical chemist Peter Atkins, puts it, we must be equally agnostic about the theory that there is a teapot in orbrit around the planet Pluto. We can't disprove it. But that doesn't mean the theory that there is a teapot is on level terms with the theory that there isn't.

[Jay] Gould sets up an artificial wall between the two worldviews that doesn't exist in my life. Because I do believe in God's creative power in having brought it all into being in the first place, I find that studying the natural world is an opportunity to observe the majesty, the elegance, the intricacy of God's creation.

The more statistically improbable a thing is, the less we can believe that it just happened by blind chance. Superficially, the obvious alternative to chance is an intelligent Designer.