People ask without wanting to know.

Quit smoking, and observe posted speed limits. This will improve your odds of getting old enough to be wise.

Silence has many advantages. When you do not speak, other people presume you to be deaf or feeble-minded and promptly make a show of their own limitations.

There are always more questions. Science as a process is never complete. It is not a foot race, with a finish line.... People will always be waiting at a particular finish line: journalists with their cameras, impatient crowds eager to call the race, astounded to see the scientists approach, pass the mark, and keep running. It's a common misunderstanding, he said. They conclude there was no race. As long as we won't commit to knowing everything, the presumption is we know nothing.

For scientists, reality is not optional.

As a biologist, I can't think of myself as anything but an animal among animals and plant.

A flower is a plant's way of making love.