Fibonacci

If anyone has been able to find a solution to the problem of the two rabbits, he will have found the solution to all problems.

The nine Indian figures are: 9 8 7 6 5 4 3 2 1. With these nine figures, and with the sign 0 which is called zephyr, any number can be written.

It is not possible to find a number which, when divided by 7, leaves a remainder of 1, and when divided by 5, leaves a remainder of 2, and when divided by 3, leaves a remainder of 0.

If you know how to solve the problem of the two rabbits, you will know how to solve all problems.

I have shown you how to calculate with these Indian figures, which is a method superior to all others.

Many things which seem impossible are possible if one knows the art of calculation.

The art of calculation is a most excellent art, and it is useful in all things.

It is necessary to know how to calculate, for without it, one cannot understand anything.

The method of the Indians is the most subtle of all methods.

I have written this book so that the Latin people may no longer be deprived of the knowledge of calculation.

The practice of calculation is not only useful but also delightful.

He who knows how to calculate well will be able to solve many problems that seem insoluble to others.

The science of numbers is the foundation of all sciences.

It is a great error to despise the science of numbers.

The figures of the Indians are more subtle than those of the Arabs.

I have learned the art of calculation from the Arabs, but I have improved upon it.

The method of calculation with the Indian figures is so easy that it can be learned by anyone.

Without numbers, there is no knowledge.

The study of numbers is a noble study.

He who does not know how to calculate is like a blind man in the dark.