The peace of the Eastern church was invaded by a swarm of fanatics [monks], incapable of fear, or reason, or humanity; and the Imperial troops acknowledged, without shame, that they were much less apprehensive of an encounter with the fiercest Barbarians.

The separation of the Arabs from the rest of mankind has accustomed them to confound the ideas of stranger and enemy.

The triumph of the Romans was indeed sullied by their treatment of the captive king, whom they hung on a gibbet without the knowledge of their indignant general. This disgraceful act of cruelty which might be imputed to the fury of the troops, was followed by the deliberate murder of Withicab, the son of Vadomair; a German prince, of a weak and sickly constitution, but of a daring and formidable spirit.

The revolution of ages may bring round the same calamities; but ages may revolve without producing a Tacitus to describe them.

The sentiment of fear is nearly allied to that of hatred.

The love of action is a principle of a much stronger and more doubtful nature. It often leads to anger, to ambition, and to revenge; but when it is guided by the sense of propriety and benevolence, it becomes the parent of every virtue, and, if those virtues are accompanied with equal abilities, a family, a state, or an empire may be indebted for their safety and prosperity to the undaunted courage of a single man.

Unprovided with original learning, unformed in the habits of thinking, unskilled in the arts of composition, I resolved to write a book.