All business proceeds on beliefs, or judgments of probabilities, and not on certainties.

The Library is the heart of the University.

Nobody has any right to find life uninteresting or unrewarding who sees within the sphere of his own activity a wrong he can help to remedy, or within himself an evil he can hope to overcome.

In the modern world the intelligence of public opinion is the one indispensable condition for social progress.

The efficient man is the man who thinks for himself.

If I had the opportunity to say a fine word to all the young people of America, it would be this: Don't think too much about yourselves. Try to cultivate the habit of thinking of others; this will reward you. Nourish your minds by good reading, constant reading. Discover what your lifework is, work in which you can do most good, in which you can be happiest. Be unafraid in all things when you know you are in the right.

All business proceeds on beliefs, or judgments of probabilities, and not on certainties.