Ibn Khaldun

All the sciences came to exist in Arabic. The systematic works on them were written in Arabic writing.

— Ibn Khaldun

If the soul is impartial in receiving information, it devotes to that information the share of critical investigation the information deserves, and…

— Ibn Khaldun

When incentive to acquire and obtain property is gone, people no longer make efforts to acquire any... Those who infringe upon property…

— Ibn Khaldun

Therefore, the Negro nation are, as a rule, submissive to slavery, because [Negroes] have little [that is essentially] human and have attributes…

— Ibn Khaldun

Man is essentially ignorant, and becomes learned through acquiring knowledge.

— Ibn Khaldun

Beyond [known peoples of black West Africa] to the south there is no civilization in the proper sense. There are only humans…

— Ibn Khaldun

Sedentary culture is the goal of civilization. It means the end of its lifespan and brings about its corruption.

— Ibn Khaldun

Habits are qualities of the soul.

— Ibn Khaldun

People are largely ignorant of the interests of the human species.

— Ibn Khaldun

The easiest method of acquiring the habit of scholarship is through acquiring the ability to express oneself clearly in discussing and disputing…

— Ibn Khaldun

Islam is under obligation to gain power over all nations.

— Ibn Khaldun

The term of life of a dynasty does not normally exceed three generations. For in the first generation are still preserved the…

— Ibn Khaldun

The Berbers belong to a powerful, formidable, and numerous people; a true people like so many others, the world has seen -…

— Ibn Khaldun

Throughout history many nations have suffered a physical defeat, but that has never marked the end of a nation. But when a…

— Ibn Khaldun

Businesses owned by responsible and organized merchants shall eventually surpass those owned by wealthy rulers.

— Ibn Khaldun

Eventually, Aristotle appeared among the Greeks. He improved the methods of logic and systematized its problems and details. He assigned to logic…

— Ibn Khaldun

Geometry enlightens the intellect and sets one's mind right. All of its proofs are very clear and orderly. It is hardly possible…

— Ibn Khaldun

Geometry enlightlens the intellect and sets one's mind right

— Ibn Khaldun

Government is an institution which prevents injustice other than such as it commits itself.

— Ibn Khaldun

The sciences of only one nation, the Greeks, have come down to us, because they were translated through Al-Ma'mun's efforts. He was…

— Ibn Khaldun

He who finds a new path is a pathfinder, even if the trail has to be found again by others; and he…

— Ibn Khaldun

At the beginning of a dynasty, taxation yields a large revenue from small assessments. At the end of the dynasty, taxation yields…

— Ibn Khaldun

Man is the child of customs, not the child of his ancestors.

— Ibn Khaldun

The past resembles the future more than one drop of water resembles another.

— Ibn Khaldun