...one of the tests of a theory is that, once grasped, it appears self-evident.

...one of the tests of a theory is that, once grasped, it appears self-evident.

All human progress, even in morals, has been the work of men who have doubted the current moral values, not read more

All human progress, even in morals, has been the work of men who have doubted the current moral values, not of men who have whooped them up and tried to enforce them.

Today the world changes so quickly that in growing up we take leave not just of youth but of the read more

Today the world changes so quickly that in growing up we take leave not just of youth but of the world we were young in.

Where intellectuals have played a role in history, it has not been so much by whispering words of advice into read more

Where intellectuals have played a role in history, it has not been so much by whispering words of advice into the ears of political overlords as by contributing to the vast and powerful currents of conceptions and misconceptions that sweep human action along.

You can only cure retail but you can prevent wholesale.

You can only cure retail but you can prevent wholesale.

There are plenty of people to whom the crucial problem of their lives never get presented in terms that they read more

There are plenty of people to whom the crucial problem of their lives never get presented in terms that they can understand.

Man only plays when in the full meaning of the word he is a man, and he is only completely read more

Man only plays when in the full meaning of the word he is a man, and he is only completely a man when he plays.

Those families, you know, are our upper crust, not upper ten
thousand.

Those families, you know, are our upper crust, not upper ten
thousand.

Progress cannot be organized.

Progress cannot be organized.