James Wood, comp. Dictionary of Quotations. 1899.

Niebuhr

Better not read books in which you make the acquaintance of the devil.

Great talents have some admirers, but few friends.

It is better to create than to be learned. Creating is the essence of life.

Our age knows nothing but reactions, and leaps from one extreme to another.

The old prose writers wrote as if they were speaking to an audience; while among us prose is invariably written for the eye alone.

What cannot be abused is good for nothing.