Ways to enrich ourselves with great knowledge

Hi,
I believe that becoming a mastery in a particular subjects of life science and Non-Life science subjects can help me acquire a great knowledge to become a successful researcher in the field of life science.
My Favourite inter-disciplines or life science studies are:

Genetic Engineering
Microbiology
Immunology
Pharmaceutical Biotechnology
Cell biology
Molecular biology
Biochemistry
Tissue culture studies
Nano biotechnology and
Ayurvedic/siddha/Indian traditional medicines.

I've a hope and confidence that i can surely become a master in biotechnology by doing M.Sc.Biotechnology and Phd in genetic engineering can give a mastery knowledge in GE.

But i don't know how to enrich myself in remaining subjects or don't know how to acquire a mastery in other disciplines..

My thought's may be stupid.But help me How to approach or to work to acquire broad knowledge in all those subjects..

Plz ..I'll be very helpful if any one can show a right path..
Plz..Help me by giving what ever suggestions,I'm ready to work hard..