There is nothing evil but what is within us; the rest is either natural or accidental.
Whatever the evolutionary basis of religion, the xenophobia it now generates is clearly maladaptive.
90% of the mass in your body comes from empty space.
The ultimate arbiter of truth is experiment, not the comfort one derives from one's a priori beliefs, nor the beauty or elegance one ascribes to one's theoretical models.
We now know that we are more insignificant than we ever imagined. If you get rid of everything we see, the universe is essentially the same. We constitute a 1 percent bit of pollution in a universe. . . we are completely irrelevant.
The amazing thing is that every atom in your body came from a star that exploded.
The illusion of purpose and design is perhaps the most pervasive illusion about nature that science has to confront on a daily basis.
Words have users, but as well, users have words. And it is the users that establish the world's realities.
Any fool can make a rule, and any fool will mind it.
The worker must have bread, but she must have roses too.
I have a 14 year old daughter now. You know, it was that time in these kids lives when these girls are becoming women and the hormones are raging. They didn't know if The Beatles were any good, they just went for it 'cause The Beatles were attractive.