The source of this energy is the sun's radiation.

Without energy life would be extinguished instantaneously, and the cellular fabric would collapse.

A living cell requires energy not only for all its functions, but also for the maintenance of its structure.

Investigations during the last few decades have brought hydrogen instead of carbon, and instead of CO2 water, the mother of all life, into the foreground.

Research is to see what everybody else has seen, and to think what nobody else has thought.

Discovery consists of seeing what everybody has seen, and thinking what nobody has thought.