Man is descended from a hairy, tailed quadruped, probably arboreal in its habits.
Animals, whom we have made our slaves, we do not like to consider our equal.
What a book a devil's chaplain might write on the clumsy, wasteful, blundering, low, and horribly cruel work of nature!
A fair result can be obtained only by fully stating and balancing the facts and arguments on both sides of each question.
On the ordinary view of each species having been independently created, we gain no scientific explanation.
The love for all living creatures is the most noble attribute of man.
The very essence of instinct is that it's followed independently of reason.
Blushing is the most peculiar and most human of all expressions.
My mind seems to have become a kind of machine for grinding general laws out of large collections of facts.
At some future period, not very distant as measured by centuries, the civilized races of man will almost certainly exterminate, and replace the savage races throughout the world.
The limit of man s knowledge in any subject possesses a high interest which is perhaps increased by its close neighbourhood to the realms of imagination.
It is always advisable to perceive clearly our ignorance.
The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic.
Ignorance more frequently begets confidence than does knowledge.
Besides love and sympathy, animals exhibit other qualities connected with the social instincts which in us would be called moral.
It is a cursed evil to any man to become as absorbed in any subject as I am in mine.
The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.
The limit of man's knowledge in any subject possesses a high interest which is perhaps increased by its close neighborhood to the realms of imagination.
A moral being is one who is capable of reflecting on his past actions and their motives - of approving of some and disapproving of others.
How paramount the future is to the present when one is surrounded by children.
