Well-washed and well-combed domestic pets grow dull; they miss the stimulus of fleas.

What nature does blindly, slowly and ruthlessly, man may do providently, quickly, and kindly. As it lies within his power, so it becomes his duty to work in that direction.

Eugenics is the study of the agencies under social control that may improve or impair the racial qualities of future generations either physically or mentally.

The cat is the only non-gregarious domestic animal. It is retained by its extra-ordinary adhesion to the comforts of the house in which it is reared.

The aim of eugenics is to represent each class or sect by its best specimens; that done, to leave them to work out their common civilization in their own way.

One of the effects of civilization is to diminish the rigour of the application of the law of natural selection. It preserves weakly lives that would have perished in barbarous lands.

[Statistics are] the only tools by which an opening can be cut through the formidable thicket of difficulties that bars the path of those who pursue the Science of Man.

Whenever you can, count.

All male animals, including men, when they are in love, are apt to behave in ways that seem ludicrous to bystanders.

The object . . . is to discover methods of condensing information concerning large groups of allied facts into brief and compendious expressions suitable for discussion.

Characteristics cling to families.

Writing was a spiritual exercise for my father, the only thing he really believed in.

Successful teaching rests both on a genuine and selfless concern for students and on the ability to convey to them a love of history.

We must accept finite disappointment but we must never lose infinite hope.

That cardinal virtue, temperance.

Trust means you anchor your heart in the reality of God's awareness of your situation.

When I receive a new role, I completely become my character.

They're not your words, but you're reciting the lines.

Awareness is a key ingredient in success. If you have it, teach it, if you lack it, seek it.

So live in the light of the resurrection and renewal of this world, and of yourself, in a glorious, never-ending, joyful dance of grace.

The key to being a warrior is not to be afraid of who you are.