I am interested in how cells know what they are and how they should behave in their proper place in the body.

It's terribly important that you can criticise people's ideas without criticising them, and if they burst into tears, it means that you tend to hold back from getting at the absolute truth.

You don't want to inhibit cell division. You want to inhibit cell division in the cancer cells, and even that is not really where you want to do it. You actually want to destroy the cancer cells, which is a different matter altogether. Just stopping them isn't enough - you really want to kill them.

The idea was to study fertilization in as many different phyla and organisms as possible, using the simplest possible equipment and a microscope. Biochemical approaches were not much in vogue, and running gels impossible at first.

Today the function of the artist is to bring imagination to science and science to imagination, where they meet, in the myth.

The older generation had greater respect for land than science. But we live in an age when science, more than soil, has become the provider of growth and abundance. Living just on the land creates loneliness in an age of globality.

The scientific argument advanced for intelligent design at the Dover trial, those arguments collapsed, scientifically and intellectually.

The child, merely by going on with his life, learns to speak the language belonging to his race. It is like a mental chemistry that takes place in the child.