The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.

It is only a short step from exaggerating what we can find in the world to exaggerating our power to remake the world.

In the small town each citizen had done something in his own way to build the community. The town booster had a vision of the future which he tried to fulfill. The suburb dweller by contrast started with the future

Some are born great, some achieve greatness, and some hire public relations officers.

Dispersed as the Jews are, they still form one nation, foreign to the land they live in.

Any government which made the welfare of men depend on the character of their governors was an illusion.

If our knowledge is, as I believe, only an island in an infinite sea of ignorance, how can we in our short lifetime find satisfaction in exploring our little island? How can we persuade ourselves to be exhilarated by our meager knowledge and yet not be discouraged by the ocean vistas?