“A human being is part of the whole called by us the universe,
a part limited in time and space.
We experience ourselves, our thoughts and feelings, as something
separate from the rest, a kind of optical illusion of consciousness...
Our task must be to free ourselves from the prison by widening our
circle of compassion to embrace all living creatures and the whole
of nature in its beauty... We shall require a substantially new manner
of thinking if humanity is to survive.”