There never was a happier or more devoted husband than the male bluebird. He is the gay champion and escort of the female at all times, and while she is sitting, he feeds her regularly.

One may summon his philosophy when they are beaten in battle, not till then.

Fear, love, and hunger were the agents that developed the wits of the lower animals, as they were, of course, the prime factors in developing the intelligence of man.

Birds and animals probably think without knowing that they think; that is, they have not self-consciousness. Only man seems to be endowed with this faculty; he alone develops disinterested intelligence, intelligence that is not primarily concerned with his own safety and well-being but that looks abroad upon things.

The main reason for the failure of the modern medical science is that it is dealing with results and not causes. Nothing more than the patching up of those attacked and the burying of those who are slain, without a thought being given to the real strong hold.

Chemistry can be a good and bad thing. Chemistry is good when you make love with it. Chemistry is bad when you make crack with it.

Life solves its problems with well-adapted designs, life-friendly chemistry and smart material and energy use.

As physics has proven, we're ultimately particulate matter, which means we are all one. That's why racial and gender bias is so ridiculous.