“The big problem of any young person's life is to have models to suggest possibilities. Nietzsche says, 'Man is the sick animal.' Man is the animal that doesn't know what to do with itself. The mind has many possibilities, but we can live no more than one life. What are we going to do with ourselves?”

“All life is rife with possibilities. Seeds have possibilities, but all their tomorrows are caught by the patterning of their life cycle. Animals have possibilities that are greater than that of a fir tree or a blade of grass. Still, though, for most animals, the pattern of instinct, the patterns of their lives, are very strong. Humanity has a far greater range of possibilities, especially the very young. Who will children grow up to be? Who will they marry, what will they believe, what will they create? Creation is a very powerful seed of possibility.”

“I think that we may safely trust a good deal more than we do. We may waive just so much care of ourselves as we honestly bestow elsewhere. Nature is well adapted to our weakness as our strength. The incessant anxiety and strain of some is a well nigh incurable form of disease. We are made to exaggerate the importance of what work we do; and yet how much is not done by us! or, what if we had been taken sick? How vigilant we are! determined not to live by faith if we can avoid it; all the day long on the alert, at night we unwillingly say our prayers and commit ourselves to uncertainties. So thoroughly and sincerely are we compelled to live, reverencing our life, and denying the possibility of change. This is the only way, we say; but there are as many ways as there can be drawn radii from one centre. All change is a miracle to contemplate; but it is a miracle which is taking place every instant. Confucius said, “To know that we know what we know, and that we do not know what we do not know, that is true knowledge.” When one man has reduced a fact of the imagination to be a fact to his understanding, I foresee that all men will at length establish their lives on that basis.”

“Each of us has two distinct choices to make about what we will do with our lives. The first choice we can make is to be less than we have the capacity to be. To earn less. To have less. To read less and think less. To try less and discipline ourselves less. These are the choices that lead to an empty life. These are the choices that, once made, lead to a life of constant apprehension instead of a life of wondrous anticipation And the second choice? To do it all! To become all that we can possibly be. To read every book that we possibly can. To earn as much as we possibly can. To give and share as much as we possibly can. To strive and produce and accomplish as much as we possibly can.”

“I believe that the best way to create good living conditions for any animal, whether it's a captive animal living in a zoo, a farm animal or a pet, is to base animal welfare programs on the core emotion systems in the brain. My theory is that the environment animals live in should activate their positive emotions as much as possible, and not activate their negative emotions any more than necessary. If we get the animal's emotions rights, we will have fewer problem behaviors... All animals and people have the same core emotion systems in the brain.”

“I remember an hypothesis argued upon by the young students, when I was at St. Omer's, and maintained with much learning and pleasantry on both sides, 'Whether supposing that the flavour of a big who obtained his death by whipping (per flagellationem extremem) superadded a pleasure upon the palate of a man more intense than any possible suffering we can conceive in the animal, is man justified in using that method of putting an animal to death?' I forget the decision.”