Dorothy Lathrop, author and artist, wrote in 1951,

“For all of us are
earth creatures and all must live here together. We are the strongest.
It is in our power either to destroy or to protect the weaker ones. We
have destroyed without mercy. Let us now protect with our strength
those creatures that are left, and save their food, their homes and
their lives from those who would selfishly take all these away. For
each creature loves its life as we do ours. It loves the earth, and
the sun and each new day.”

Henry Beston, American writer-naturalist, wrote:

“We need another and a wiser and perhaps a more mystical concept of
animals. Remote from universal nature and living by complicated
artifice, man in civilization surveys the creature through the glass
of his knowledge and sees thereby a feather magnified and the whole
image in distortion. We patronize them for their incompleteness, for
their tragic fate of having taken form so far below ourselves. And
therein we err, and greatly err. For the animal shall not be measured
by man. In a world older and more complete than ours they move
finished and complete, gifted with extensions of the senses we have
lost or never attained, living by voices we shall never hear. They are
not brethren, they are not underlings; they are other nations, caught
with ourselves in the net of life and time, fellow prisoners of the splendor and travail of the earth.”