Linnaeus and Cuvier have been my two gods, though in very different ways, but they were mere schoolboys to old Aristotle.

Daily it is forced home on the mind of the biologist that nothing, not even the wind that blows, is so unstable as the level of the crust of this earth.

I believe we were all glad to leave New Zealand. It is not a pleasant place. Amongst the natives there is absent that charming simplicity .... and the greater part of the English are the very refuse of society.

An agnostic would be the more correct description of my state of mind.

I feel like an old warhorse at the sound of a trumpet when I read about the capturing of rare beetles.

The fact of evolution is the backbone of biology, and biology is thus in the peculiar position of being a science founded on an improved theory, is it then a science or faith?

I long to set foot where no man has trod before.