What a life in science really teaches you is the vastness of our ignorance.

We don't really understand most of what's happening in the cosmos. Is there any afterlife? Who knows.

At least 15 percent of human females possess a genetic mutation that gives them an extra (fourth) type of color photoreceptor - and this allows them to discriminate between colors that look identical to the majority of us with a mere three types of color photoreceptors.

It is only through us that God lives. When we abandon him, he dies.

Because vision appears so effortless, we are like fish challenged to understand water.

Vision is more than looking.

We are not at the center of ourselves, but instead - like the Earth in the Milky Way, and the Milky Way in the universe - far out on a distant edge, hearing little of what is transpiring.