I think that systems that are based on employment are illogical and attempts to meet them create all sorts of unnecessary complexities.

Knowledge is a free good. The biggest cost in its transmission is not in the production or distribution of knowledge, but in its assimilation. This is something that all teachers know.

Now virtue may not always be its own reward, but in any case it is not usually bought and paid for at market rates.

Vast ills have followed a belief in certainty.

Unsolved problems, that's one of the great signs of progress in my opinion.

The world is changing. We're not really proceeding on a stationary basis.

One thing I learned from meteorology is that being an actual science was no guarantee of exactness.

Education is still, in spite of private education, a state matter.

The MD is well aware that the forecasts are no good but he needs them for planning purposes.

My undergraduate education, at the City College in New York, was made possible only by the existence of that excellent free institution and the financial sacrifices of my parents.

Usefulness depends on tractability.

I'm so reluctant to do newspaper interviews because it's so misleading how they interpret what you say.

Life is a kind of struggle. Life is a sort of fight.

It took me seventeen years to get three thousand hits in baseball. I did it in one afternoon on the golf course.

Grandfather always said school’s a place where they take sixteen years to wear down your brain. Grandfather hardly went to school either.

A woman who does not know herself has no choice other than to live with other people’s evaluations. But no one can adapt perfectly to public opinion. And herein lies the source of their destruction.

Of course I am not religious — I don't in fact see how any scientist who thinks at all deeply can be so.

If you make a choice that doesn't please your mate, your friends, your mother, or whoever, the world will not fall apart - the people who truly love you want you to love yourself.

The larger picture here is that a North Korea with nuclear weapons adds to the larger proliferation risk.

Dispositions of the mind, like limbs of the body, acquire strength by exercise.

Never underestimate the enemy, above all if he is a stupid one and deserves to be killed.