In all works on Natural History, we constantly find details of the marvellous adaptation of animals to their food, their habits, and the localities in which they are found.

Modification of form is admitted to be a matter of time

What birds can have their bills more peculiarly formed than the ibis, the spoonbill, and the heron?

Civilisation has ever accompanied emigration and conquest - the conflict of opinion, of religion, or of race

Truth is born into this world only with pangs and tribulations, and every fresh truth is received unwillingly.

I hold with Henry George, that at the back of every great social evil will be found a great political wrong

I am thankful I can see much to admire in all religions.

In my solitude I have pondered much on the incomprehensible subjects of space, eternity, life and death.

The white men in our colonies are too frequently the savages

To say that mind is a product or function of protoplasm, or of its molecular changes, is to use words to which we can attach no clear conception

There is a tendency in nature to the continued progression of certain classes of varieties further and further from the original type.

You aren’t some dream I want to relive. You’re the part of my life that someone has decided to rip away and I’m trying to figure out how to tie us back together.

Peak Performance is not a destination but a journey!

And only weaklings...who lack courage and the power to feel they're right when the whole world says they're wrong, ever lose.

Every wave in an ocean has a secret to tell you

I have learned that as soon as you introduce controls on human behavior, you lose the game, particularly when those controls are at odds with the work.

I used to get out there and have a thousand swing thoughts. Now I try not to have any.

Like any large organisation, public or private, the UN is a complex machine.

You can't erase a dream, you can only wake me up.

In their work, then, as in their play, men and women are more and more coming to share with each other as comrades, and really the fun of life seems in no wise diminished as a consequence.

It's not an 'either/or,' it's an 'and.' You can be serious and play.