The real enemy is the man who tries to mold the human spirit so that it will not dare to spread its wings.

We must not overlook the role that extremists play. They are the gadflies that keep society from being too complacent.

We must not overlook the role that extremists play. They are the gadflies that keep society from being too complacent or self-satisfied they are, if sound, the spearhead of progress. If they are fundamentally wrong, free discussion will in time put an end to them.

Mathematicians, like cows in the dark, all look alike to me.

We feel strongly that the spirit characteristic of America at its noblest, above all the pursuit of higher learning, cannot admit of any conditions as to personnel other than those designed to promote the objects for which this institution is established, and particularly with no regard whatever to accidents of race, creed, or sex.

Science, in the very act of solving problems, creates more of them.

Medical education is not just a program for building knowledge and skills in its recipients... it is also an experience which creates attitudes and expectations.

The student is to collect and evaluate facts. The facts are locked up in the patient.

There are men who teach best by not teaching at all.

A patient had a 50-50 chance of benefiting from visiting a physician as of 1910. Medicine was more like voodoo than science until the 20th Century.

The world in which we live is the only world about which our senses can testify.

You have had your last bad meal. But, you have also heard your last honest compliment, and you have lost your last true friend.

Nations have recently been led to borrow billions for war no nation has ever borrowed largely for education... no nation is rich enough to pay for both war and civilization. We must make our choice we cannot have both.