Force Quote by Isaac Newton
“The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.”
About This Quote
Source Treat: Philosophiae Naturalis Principia Mathematica, 1687
Motion changes proportionally to applied force and follows the line of that force.
In simple terms: Force determines motion direction and amount.
Key Takeaway
Apply force wisely to guide motion.
Themes
physics
mechanics
causality
Mood
analytical
inquisitive
Type
scientific
educational
When to use this quote
- engineering design
- sports strategy
- vehicle dynamics
- robotic control
Key Concepts
Newtonian mechanics
vector direction
Questions to Reflect On
- How does changing force affect motion?
- What real‑world systems illustrate this principle?
A Different Perspective
Neglecting friction or other forces can alter outcomes.
![“Do not Bodies act upon Light at a distance, and by their action bend its Rays; and is not this action (caeteris paribus) [all else being equal] strongest at the least distance?” quote by Isaac Newton](https://sms4smile.com/quotes/img-quotes/f9c/isaac-newton-1226_action_do-not-bodies-act-upon-light-at-a-distan_90238.jpg)
![“I am ashamed to tell you to how many figures I carried these calculations [of Pi], having no other business at the time” quote by Isaac Newton](https://sms4smile.com/quotes/img-quotes/93f/isaac-newton-1226_ashamed_i-am-ashamed-to-tell-you-to-how-many-fig_106544.jpg)
![“Neither Italian fascism nor German national "socialism" have anything in common with such a [Soviet socialistic] society, primarily because private ownership of factories, plants, lands, banks, means of transportation, etc., remain untouched there, and, therefore, capitalism in Germany and Italy…” quote by Joseph Stalin](https://sms4smile.com/quotes/img-quotes/411/joseph-stalin-1734_capitalism_neither-italian-fascism-nor-german-natio_1430.jpg)
