physics Quotes

The continuum is that which is divisible into indivisibles that are infinitely divisible.

Nature operates in the shortest way possible.

It is clear, then, that the earth must be at the centre and immovable, not only for the reasons already given, but also because heavy bodies forcibly thrown quite straight upward return to the point from which they started, even... ...

There is more evidence to prove that saltness [of the sea] is due to the admixture of some substance, besides that which we have adduced. Make a vessel of wax and put it in the sea, fastening its mouth in... ...

Time is the measurable unit of movement concerning a before and an after.

The sun, moving as it does, sets up processes of change and becoming and decay, and by its agency the finest and sweetest water is every day carried up and is dissolved into vapour and rises to the upper region,... ...

...The entire preoccupation of the physicist is with things that contain within themselves a principle of movement and rest.

If everything when it occupies an equal space is at rest, and if that which is in locomotion is always occupying such a space at any moment, the flying arrow is therefore motionless.

To be ignorant of motion is to be ignorant of nature

That which is in locomotion must arrive at the half-way stage before it arrives at the goal.