There is no fundamental difference between man and the higher animals in their mental faculties.

It has often and confidently been asserted, that man's origin can never be known: Ignorance more frequently begets confidence than does knowledge: it is those …

The lower animals, like man, manifestly feel pleasure and pain, happiness, and misery. Happiness is never better exhibited than by young animals, such as puppi…

As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it f…

Painting is an art, and the art in its whole is not a vain objets creation which get lost in the void, but a power which has a goal and must serve to the evolu…

I was taught that the human brain was the crowning glory of evolution so far, but I think it's a very poor scheme for survival.

'...instead of holding on to the Biblical view that we are made in the image of God, we come to realize that we are made in the image of the monkey....' (p. 36)