Calculus required continuity, and continuity was supposed to require the infinitely little; but nobody could discover what the infinitely little might be.Bertrand Russell

The invention of the differential calculus marks a crisis in the history of mathematics. The progress of science is divided between periods characterized by a slow accumulation of ideas and periods, when, owing to the new material for thought thus patiently collected, some genius by the invention of a new method or a new point of view, suddenly transforms the whole subject on to a higher level.Alfred North Whitehead

Calculus is the outcome of a dramatic intellectual struggle which has lasted for twenty-five hundred years.Richard Courant

The calculus is the story this the Western world first told itself as it became the modern world.David Berlinski

The theory which follows is entirely based on a calculus of pleasure and pain; and the object of economics is to maximize happiness by purchasing pleasure, as it were, at the lowest cost of pain.William Stanley Jevons

In the horrifying calculus of self-deception, the greater the pain we inflict on others, the greater the need to justify it to maintain our feelings of decency and self-worth.Carol Tavris

Non- Euclidean calculus and quantum physics are enough to stretch any brain; and when one mixes them with folklore, and tries to trace a strange background of multi-dimensional reality behind the ghoulish hints of Gothic tales and the wild whispers of the chimney-corner, one can hardly expect to be wholly free from mental tension.H.P. Lovecraft

Every one who understands the subject will agree that even the basis on which the scientific explanation of nature rests is intelligible only to those who have learned at least the elements of the differential and integral calculus, as well as analytical geometry.Felix Klein

The theory of probabilities is basically only common sense reduced to a calculus. It makes one estimate accurately what right-minded people feel by a sort of instinct, often without being able to give a reason for it.Pierre-Simon Laplace

Geometric calculus consists in a system of operations analogous to those of algebraic calculus, but in which the entities on which the calculations are carried out, instead of being numbers, are geometric entities which we shall define.Giuseppe Peano

If one looks at the different problems of the integral calculus which arise naturally when one wishes to go deep into the different parts of physics, it is impossible not to be struck by the analogies existing.Henri Poincare

The calculus of probabilities, when confined within just limits, ought to interest, in an equal degree, the mathematician, the experimentalist, and the statesman.Francois Arago

All phenomena are equally susceptible of being calculated, and all that is necessary, to reduce the whole of nature to laws similar to those which Newton discovered with the aid of the calculus, is to have a sufficient number of observations and a mathematics that is complex enough.Nicolas de Caritat

One good thing about teaching calculus is that you develop a hardened attitude towards repeating yourself.Philip J. Hanlon

The true logic for this world is the calculus of probabilities, which takes account of the magnitude of the probability.James Clerk Maxwell

The calculus of utility aims at supplying the ordinary wants of man at the least cost of labour.William Stanley Jevons

The calculus is the greatest aid we have to the application of physical truth in the broadest sense of the word.William Fogg Osgood

Calculus, the electrical battery, the telephone, the steam engine, the radio all these groundbreaking innovations were hit upon by multiple inventors working in parallel with no knowledge of one another.Steven Johnson

There is a calculus, it turns out, for mastering our subconscious urges. For companies like Target, the exhaustive rendering of our conscious and unconscious patterns into data sets and algorithms has revolutionized what they know about us and, therefore, how precisely they can sell.Charles Duhigg

The whole apparatus of the calculus takes on an entirely different form when developed for the complex numbers.Keith Devlin

The true logic of this world is in the calculus of probabilities.James Clerk Maxwell

In the moral calculus of currently prevailing state capitalism, profits and bonuses in the next quarter greatly outweigh concern for the welfare of one's grandchildren, and since these are institutional maladies, they will not be easy to overcome. While much remains uncertain, we can assure ourselves, with fair confidence, that future generations will not forgive us our silence and apathy.Noam Chomsky

Calculus is the most powerful weapon of thought yet devised by the wit of man.Wallace B. Smith

Calculus works by making visible the infinitesimally small.Keith Devlin