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

Konrad Lorenz

Konrad Lorenz

Profession: Scientist
Nationality: Austrian

Some suggestions for you :

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

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

I owe undying gratitude to my patient parents.

'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.

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

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

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

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.

Ethologists are often accused of drawing false analogies between animal and human behaviour. However, no such thing as a false analogy exists: an analogy can be more or less detailed and, hence, more or less informative.

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.

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.

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

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

We do not take humor seriously enough.