On the theory of natural selection we can clearly understand the full meaning of that old canon in natural history, “Natura non facit saltum.” This canon, if we look only to the present inhabitants of the world, is not strictly correct, but if we include all those of past times, it must by my theory be strictly true.

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 am dying by inches, from not having any body to talk to about insects.

We will now discuss in a little more detail the Struggle for Existence.

I am not the least afraid to die

A fair result can be obtained only by fully stating and balancing the facts and arguments on both sides of each question." Charles Darwin

I have been speculating last night what makes a man a discoverer of undiscovered things; and a most perplexing problem it is. Many men who are very clever - much cleverer than the discoverers - never originate anything.