Wherever we find orderly, stable systems in Nature, we find that they are hierarchically structured, for the simple reason that read more

Wherever we find orderly, stable systems in Nature, we find that they are hierarchically structured, for the simple reason that without such structuring of complex systems into sub-assemblies, there could be no order and stability- except the order of a dead universe filled with a uniformly distributed gas.

Without education we are in a horrible and deadly danger of taking educated people seriously.

Without education we are in a horrible and deadly danger of taking educated people seriously.

Science is facts. Just as houses are made of stones, so science is made of facts. But a pile of read more

Science is facts. Just as houses are made of stones, so science is made of facts. But a pile of stones is not a house and a collection of facts is not necessarily science.

Civilized man has always had a great inclination to read his conceptions and feelings into the mind of primitive man; read more

Civilized man has always had a great inclination to read his conceptions and feelings into the mind of primitive man; but he has only a limited capacity for understanding the latter's undeveloped mental life and for interpreting, as it were, his nature.

Mere facts are for children only. As they begin to point towards conclusions they become food for men.

Mere facts are for children only. As they begin to point towards conclusions they become food for men.

Don't ask the barber whether you need a haircut.

Don't ask the barber whether you need a haircut.

The nature of a society is largely determined by the direction in which talent and ambition flow--by the tilt of read more

The nature of a society is largely determined by the direction in which talent and ambition flow--by the tilt of the social landscape.

Without a struggle, there can be no progress.

Without a struggle, there can be no progress.

Every politician, clergyman, educator, or physician, in short, anyone dealing with human individuals, is bound to make grave mistakes if read more

Every politician, clergyman, educator, or physician, in short, anyone dealing with human individuals, is bound to make grave mistakes if he ignores these two great truths of population zoology: (1) no two individuals are alike, and (2) both environment and genetic endowment make a contribution to nearly every trait.