A great deal of the universe does not need any explanation. Elephants, for instance. Once molecules have learnt to compete and to create other molecules in their own image, elephants, and things resembling elephants, will in due course be found roaming around the countryside ... Some of the things resembling elephants will be men.
Peter AtkinsChemistry begins in the stars. The stars are the source of the chemical elements, which are the building blocks of matter and the core of our subject.
Peter Atkins