Eventually, Aristotle appeared among the Greeks. He improved the methods of logic and systematized its problems and details. He assigned to logic its proper place as the first philosophical discipline and the introduction to philosophy. Therefore he is called the First Teacher.

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

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

He who finds a new path is a pathfinder, even if the trail has to be found again by others; and he who walks far ahead of his contemporaries is a leader, even though centuries pass before he is recognized as such.

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

Islam is under obligation to gain power over all nations.

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