Wisdom - meaning judgment acting on experience, common sense, available knowledge, and a decent appreciation of probability.
Without books, history is silent, literature dumb, science crippled.
The poets have familiarized more people with history than have the historians.
The conduct of war was so much more interesting than its prevention.
Nothing sickens me more than the closed door of a library.
The appetite for power is old and irrepressible in humankind, and in its action almost always destructive.