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

The American Cancer Society tried to ruin my research foundation.

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

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

The key to happiness is not to get more, but to enjoy what we have and to fill the empty frame of our lives instead of enlarging it.

Why does man behave like perfect idiot? This is the problem I wish to deal with.

Life is a wondrous phenomenon.