We do not respect people's beliefs, we evaluate their reasons. If my reasons are good enough for believing what I believe, you will helplessly believe what I believe. I will give you my reasons and reasons are contagious. That is what it is to be a rational human being.

Life is a continuous flux. Our nonhuman ancestors bred, generation after generation, and incrementally begat what we now deem to be the species homo sapiens - ourselves. There is nothing about our ancestral line or about our current biology that dictates how we will evolve in the future. Nothing in the natural order demands that our descendants resemble us in any particular way. Very likely, they will not resemble us. We will almost certainly transform ourselves, likely beyond recognition, in the generations to come.

Each increment of knowledge imparted in this way is so satisfying-and one's ignorance at every stage so consequential-that the process of learning BJJ can become remarkably addictive. I have never experienced anything quite like it.

Lying is, almost by definition, a refusal to cooperate with others. It condenses a lack of trust and trustworthiness into a single act. It is both a failure of understanding and an unwillingness to be understood. To lie is to recoil from relationship.

The conflict between religion and science is inherent and (very nearly) zero-sum. The success of science often comes at the expense of religious dogma; the maintenance of religious dogma always comes at the expense of science.

It is time that scientists and other public intellectuals observed that the contest between faith and reason is zero-sum.

Religion provides the only story that is fundamentally consoling in the face of the worst possible experiences - the death of a parent, for instance. In fact, many religions take away the problem entirely, because their adherents ostensibly believe that they're going to be reunited with everyone they love, and death is an illusion.