To regulate something always requires two opposing factors. You cannot regulate by a single factor. To give an example, the traffic in the streets could not be controlled by a green light or a red light alone. It needs a green light and a red light as well. The ratio between retine and promine determines whether there is any motion, any growth, or not. Two different inclinations have to be there in readiness to make the cells proliferate.
Albert Szent-GyorgyiIf structure does not tell us anything about function, it means that we have not looked at it correctly.
Albert Szent-GyorgyiDiscovery consists of looking at the same thing as everyone else and thinking something different.
Albert Szent-Gyorgyi