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

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

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

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

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

The new naval treaty permits the United States to spend a billion dollars on warships-a sum greater than has been accumulated by all our endowed institutions of learning in their entire history. Unintelligence could go no further! ... In Great Britain, the situation is similar. ... Until the figures are reversed, ... nations deceive themselves as to what they care about most.