We do not take humor seriously enough.

The fidelity of a dog is a precious gift.

I owe undying gratitude to my patient parents.

The human soul is very much older than the human mind.

Humor and knowledge are the two great hopes of our culture.

The cat is a wild animal that inhabits the homes of humans.

Hatred of humanity and love of animals make a very bad combination.

Barking dogs occasionally bite, but laughing men hardly ever shoot.

Just thinking that my dog loves me more than I love him, I feel shame.

Barking dogs may occasionally bite, but laughing men hardly ever shoot!

The bond with a dog is as lasting as the ties of this earth can ever be.

Man appears to be the missing link between anthropoid apes and human beings.

Few animals display their mood via facial expressions as distinctly as cats.

The bond with a true dog is as lasting as the ties of this earth will ever be.

Man has been driven out of the paradise in which he could trust his instincts.

I have found the missing link between the higher ape and civilized man; it is we.

There is no faith which has never yet been broken, except that of a truly faithful dog

The father-mother family with two children isolated in a city flat is already insufficient.

Evil, by definition, is that which endangers the good, and the good is what we perceive as a value.

I believe that present day civilized man suffers from insufficient discharge of his aggressive drive

I believe that present day civilized man suffers from insufficient discharge of his aggressive drive.

I consider early childhood events as most essential to a man's scientific and philosophical development.

All scientific knowledge to which man owes his role as master of the world arose from playful activities.

Evil, by definition, is that which endangers the good, and the good is that which we perceive as a value.

Truth in science can be defined as the working hypothesis best suited to open the way to the next better one.

Scientific truth is universal, because it is only discovered by the human brain and not made by it, as art is.

The truth about an animal is far more exciting and altogether more beautiful than all the myths woven about it.

In science, new ideas are at first completely neglected, later fiercely attacked, and finally regarded as well known.

More than any other product of human scientific culture scientific knowledge is the collective property of all mankind.

When I was about ten, I discovered evolution by reading a book by Wilhelm Boelsche and seeing a picture of Archaeopteryx.

There is indeed the possibility that the evolutionary process has, in gray antiquity, bred into us an excess of aggression.

The fidelity of a dog is a precious gift demanding no less binding moral responsibilities than the friendship of a human being.

It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young.

It ought to be realized by all dog owners that obesity shortens a dog's life quite considerably, a life which is much too short anyhow.

We had better dispense with the personification of evil, because it leads, all too easily, to the most dangerous kind of war: religious war.

Most of the vices and mortal sins condemned today correspond to inclinations that were purely adaptive or at least harmless in primitive man

Most of the vices and mortal sins condemned today correspond to inclinations that were purely adaptive or at least harmless in primitive man.

I grew up in the large house and the larger garden of my parents in Altenberg. They were supremely tolerant of my inordinate love for animals.

Historians will have to face the fact that natural selection determined the evolution of cultures in the same manner as it did that of species.

In nature we find not only that which is expedient, but also everything which is not so inexpedient as to endanger the existence of the species.

The human mind, in taking us down the path of technocracy, has become the adversary of life itself and collaterally the adversary of the human soul.

The neuro-physiological organization which we call instinct functions in a blindly mechanical way, particularly apparent when its function goes wrong.

One could not be a successful scientist without realizing that, a goodly number of scientists are not only narrow-minded and dull, but also just stupid.

The instinctive need to be the member of a closely knit group fighting for common ideals may grow so strong that it becomes inessential what these ideals are.

Practically all animals which move fast in a homogeneous medium have found means of giving their body a streamlined shape, thereby reducing friction to a minimum.

I would rather have a Scot come from Scotland togovern the people of this kingdom well and justly, than that you should govern them ill in the sight of all the world.

A man sufficiently gifted with humor is in small danger of succumbing to flattering delusions about himself, because he cannot help perceiving what a pompous ass he would become if he did.

'I don't need brains,' says the billionaire contemptuously. 'I'm brainy enough myself!' The broker cries out in desperation, 'What, in heaven's name, do you want?' 'Goodness,' is the answer.

In the course of evolution, it constantly happens that, independently of each other, two different forms of life take similar, parallel paths in adapting themselves to the same external circumstances.

Natural selection does not give any preference at all to anything that, in the long run, could be advantageous for the species but blindly rewards everything that, momentarily, affords greater procreative success.

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