Given Quantity Quotes
- But just as much as it is easy to find the differential [derivative] of a given quantity, so it is difficult to find the integral… — Johann Bernoulli
- Value denotes a relation reciprocally existing between two objects, and the precise relation which it denotes is the quantity of the one which can be… — Nassau William Senior
- The passion between the sexes has appeared in every age to be so nearly the same, that it may always be considered, in algebraic language… — Thomas Malthus