“The soul is the same in all living creatures, although the body of each is different.”
— Hippocrates

“The time will come when men such as I will look upon the murder of animals as they now look on the murder of men.”
— Leonardo da Vinci

“The greatness of a nation and its moral progress can be judged by the way its animals are treated. ”
— Mahatma Gandhi

“One day the absurdity of the almost universal human belief in the slavery of other animals will be palpable. We shall then have discovered our souls and become worthier of sharing this planet with them.”
— Martin Luther King, Jr